Historical clue formulations

• It took more than 70 yrs. to complete its first edition — 2026-06-23
• Work that traces the evolution of lang. over 1,000 years — 2026-05-08
• Grand project begun by the London Philological Society, in brief — 2026-02-24
• Ref. work with over 600,000 words — 2026-01-14
• Source of 3.5 million quotations, for short — 2025-12-10
• Its first and second editions were published more than 60 yrs. apart — 2025-12-06
• Ref. work with definitions for "colour" and "aluminium" — 2025-06-03
• For reference, it's over 21,000 pages, in brief — 2025-05-07
• Ref. work that's been available electronically since 1988 — 2025-03-26
• Multivolume ref. work — 2024-12-04
• Work whose first installment spanned 352 pages and ended with "ant," in brief — 2024-11-09
• British ref. work — 2024-10-15
• Voluminous ref. — 2024-10-08
• Some 3.5 million quotations were gathered for it, for short — 2024-08-16
• Multivolume ref. — 2024-07-17
• British ref. — 2024-07-10
• Ref. that added "turnt" and "deepfake" in 2023 — 2024-05-27
• Ref. work that began as a Philological Society project — 2024-01-21
• Ref. work that Tolkien contributed to from "waggle" to "wild" — 2023-12-30
• Massive ref. — 2023-11-28
• British ref. work — 2023-10-22
• Major ref. — 2023-09-10
• Big reference, but shortened — 2023-03-04
• Meaningful work, for short? — 2022-10-13
• Work started by London's Philological Soc. — 2022-04-14
• Alternative to Webster's, in brief — 2022-01-23
• It added "essential worker" in March of 2021: Abbr. — 2021-11-14
• Ref. work that took more than 70 years to complete — 2021-08-20
• Where Boxing Day comes before Christmas, in brief? — 2021-06-23
• A-to-zed lexicon, in brief — 2021-05-03
• Subj. of Charlotte Brewer's "Treasure-House of the Language" — 2021-03-10
• Its "concise" version has almost 1,700 pages: Abbr. — 2020-04-18
• Ref. work in which the verb "set" has a 60,000-word entry — 2020-03-27
• U.K. lexicon — 2020-03-17
• Publication whose first ed. took more than 70 years to complete — 2019-11-24
• It has included a heart symbol since 2011, in brief — 2019-10-04
• Hefty lexical ref. — 2019-09-24
• Ref. work begun by the London Philological Society — 2019-04-18
• Masterwork in philology, for short — 2019-03-22
• Its second ed. contains about 59 million words — 2019-03-21
• Ref. that added "cruciverbalist" (a person who does crosswords) in 2006 — 2018-12-26
• A heart symbol, meaning "love," was its first graphical entry, for short — 2018-11-21
• Classic work whose "shorter" version comes in two vols. — 2018-10-14
• Its first vol., A-Ant, was published in 1884 — 2018-09-12
• Work containing more than 3.5 million citations, for short — 2018-09-08
• Massive lang. reference — 2018-09-05
• Massive resource: Abbr. — 2018-08-11
• It took 70 years to complete, in brief — 2018-06-02
• Classic work originally in 10 vols. — 2018-04-25
• Big ref. work — 2018-04-05