testor.
to be witness, testify, attest
Meaning & usage
to be witness, testify, attest
to summon as a witness, call to witness, invoke, entreat, swear by, appeal to
to make a will
Where this word comes from
Etymology tree Proto-Indo-European *tri- Proto-Indo-European *steh₂- Proto-Indo-European *trito-sth₂-o-s Proto-Italic *tristos Latin *terstis Latin testis Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Indo-European *-h₂tiinflu. Proto-Italic *-ājō Proto-Italic *-āō Latin -o Latin testor From testis (“a witness”) + -o.
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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.