⁽*⁾trivialist (n.): someone who deals with or is interested in trivialities. ~ (Collins English Dictionary).

• lacuna (n.; pl. lacunae or lacunas): 1. an empty space or a missing part; a gap; [e.g.]: “self-centred in opinion, with curious lacunae of astounding ignorance”. (Frank Norris); 2. (anatomy): a cavity, space, or depression, especially in a bone, containing cartilage or bone cells; (adj.): lacunal, lacunose, lacunary; (n.): lacunosity. [Latin lacūna, ‘pool’, ‘hollow’, ‘gap’, from lacus, ‘lake’]. ~ (American Heritage Dictionary).

left field: fig. a position away from the centre of activity or interest; a state of ignorance, confusion, or unreality’. (Oxford Dictionary).

• legacy (n.; pl. legacies): 1. (...); 2. something handed down from an ancestor or a predecessor or from the past; [e.g.]: “A legacy of religious freedom”; (synonyms): heritage, inheritance, tradition, legacy; these nouns denote something immaterial, such as a practice or custom, which is passed from one generation to another; [e.g.]: “An ancient heritage of volunteerism”; “A rich inheritance of ancestral storytelling”; “The family tradition dating back centuries”; “A renaissant legacy of philosophical thought”; 3. (...); 4. (adj.): (...). [Middle English legacie, ‘office of a deputy’, from Old French, from Medieval Latin lēgātia, from Latin lēgātus, past participle of lēgāre, ‘to depute’, ‘bequeath’]. ~ (American Heritage Dictionary).

• legacy (n.; pl. legacies): 1. (...); 2. something handed down or received from an ancestor or predecessor; 3. (...). [C14 (meaning: office of a legate), C15 (meaning bequest); from Medieval Latin lēgātia, ‘commission’; see legate; viz.: from Latin lēgātus, ‘deputy’, from lēgāre, ‘to delegate’; related to lēx, ‘law’]. ~ (Collins English Dictionary).

• legacy (n.; pl. legacies): 1. (...); 2. anything handed down from the past, as from an ancestor or predecessor; 3. (...); 4. (...); 5. (adj.): (...). [1325-75; Middle English legacie, ‘office of a deputy or legate’, from Medieval Latin lēgātia; see legate (viz.: Latin lēgātus, nounal use of masculine past participle of lēgāre, ‘to send as a legate’; ‘to commission’, ‘to bequeath’, derivative of lēx, ‘law’) + -acy]. ~ (Webster’s College Dictionary).

• legacy (n.): 1. (...); 2. something immaterial, as a style or philosophy, which is passed from one generation to another; (synonyms): heritage, inheritance, tradition. ~ (The American Heritage Roget’s Thesaurus).

• legacy (n.): 1. (...); 2. something handed down or received from an ancestor or predecessor; 3. (...). ~ (Collins Discovery Encyclopedia).

• legacy (n.; pl. legacies): 1. (...); 2. anything bequeathed or handed down by an ancestor or a predecessor; 3. (...); 4. (...); 5. (...); 6. (tr.v.; pret. and pp. legacied, ppr. legacying; legacy, noun): to bequeath; assign as a legacy; to leave a legacy to. [from Middle English legacie, Old French legacie (found only in sense of ‘legateship’) = Spanish legacía = Portuguese legacia, from Medieval Latin as if *legatia, for Latin legatum (hence Italian legato = Spanish legado; cf. Portuguese legado, ‘bequeathed’), ‘a bequest’, from legatus, pp. of legare, ‘bequeath’; see legate; the French legs, ‘a legacy’, is not related; it is a bad spelling of Old French lais; see lease², noun]. ~ (Century Dictionary and Cyclopaedia).

• legacy (n.): 1. (...); 2. something inherited from a predecessor; a heritage; 3. (...); 4. (...); 5. (adj.): (...). [from Old French legacie, from Medieval Latin legatia, from Latin lēgātum, participle of lēgō]. ~ (Word-Sense Online Dictionary).

lese-majesty (n.): 1. the insulting of a monarch or other ruler; treason; [e.g.]: ‘the Shah would whip him for his lese-majesty’; ‘The junta used lese-majesty as an excuse to stage the military coup that toppled Thaksin Shinawatra’s government’; 1.1. presumptuous or disrespectful behaviour; [e.g.]: ‘he responded to the lese-majesty of the young man with an arctic stare’. [origin: Late Middle English: from French lèse-majesté, from Latin laesa majesta, ‘injured sovereignty’]. ~ (Oxford English Dictionary).

Another idiomatic expression ... as in ‘there is life after forty’, and ‘there is life after retirement’, and ‘there is life after menopause’, and so on.

liker (n.): a person who likes; [e.g.]: "In reality though, extroversion was not related to being a liker or expecting to be liked". (Scott Barry Kaufman; 2011). ~ (Collins English Dictionary).

locus classicus (n.): an authoritative and often quoted passage from a standard work. ~ (Collins English Dictionary).

logicist: a (mathematical) logician; an adherent or student of logicism [the theory that a set of axioms for mathematics can be deduced from a primitive set of purely logical axioms]. (Oxford Dictionary).

logomach (n.): someone given to disputes over words; (synonyms): logomachist, controversialist, disputant, eristic (a person who disputes; who is good at or enjoys controversy).~ (Princeton’s WordNet 3.0).

logomachy (n.): contention in words only, or a contention about words; a war of words; logomachic and *logomachical* (adj.): characterised by logomachy or verbal fencing. [from Late Greek λογομαχια [logomachia], ‘war about words’]. [emphasis added]. ~ (Century Dictionary and Cyclopaedia).

The phrase is derived from John Hobhouse stating “His Majesty’s Loyal Opposition” in 1826 in a debate in the British parliament. It is intended to illustrate that Members of Parliament in a country’s legislature may oppose the policies of the incumbent government—typically comprising parliamentarians from the party with the most seats in the elected legislative chamber—while maintaining deference to the higher authority of the state and the larger framework within which democracy operates. The concept thus permits the dissent necessary for a functioning democracy without fear of being accused of treason.

Commonwealth Realms.

The notion of a loyal opposition exists in various Commonwealth realms, being therein termed formally as “His (or Her) Majesty’s Loyal Opposition” and informally as the “Official Opposition”, with the head of the largest opposition party—normally that which holds the second largest number of seats—designated as the Leader of “Her (or His) Majesty’s Loyal Opposition”.

As a consequence of this parliamentary evolution, the sovereign’s right to the throne became more concrete, seeing the opposition scrutinise government legislation and policies, rather than engage in disputes between competing candidates for the Crown, each supported by different religious and economic groups. Further, the acceptance of such a thing as a ‘loyal opposition’ in Parliament factored into the development of a rigid party system in the United Kingdom; the separation of Members of Parliament’s loyalty to the Crown from their opposition to the sovereign’s ministers eliminated the idea that there could only be one “King’s Party” and that to oppose it would be disloyal or even treasonous.