erbyn.
by (not later than)
Meaning & usage
by (not later than)
Where this word comes from
From Middle Welsh erbyn, from Proto-Brythonic *ar bɨnn, from Proto-Celtic *ɸare kʷennūi (“in front of the head”). Essentially equivalent to ar + pen, but with the umlaut due to the Proto-Celtic inflection.
by the time that
Where this word comes from
From Middle Welsh erbyn, from Proto-Brythonic *ar bɨnn, from Proto-Celtic *ɸare kʷennūi (“in front of the head”). Essentially equivalent to ar + pen, but with the umlaut due to the Proto-Celtic inflection.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.