sincerus.
clean, pure, sound
Meaning & usage
clean, pure, sound
uninjured, whole
real, natural
genuine, sincere
Where this word comes from
From Proto-Italic *senkairos, from Proto-Indo-European *sem- (compare Latin simplex, and Sanskrit सम (sama, “whole, together”)) and *ḱer- (“grow”) (compare Sanskrit किर् (kir, “pour out”)). According to De Vaan, the second part of the compound derives from the unattested adjective *caerus found in the first part of caerimōnia, which is also related to caelum (“sky”). However, this is problematic: the expected outcome of Proto-Italic *senkairos would be *sincīrus, since Proto-Italic /ai/ gives /iː/, not /eː/ under vowel reduction (as in occīdere), and it is implausible that this word was imported from rural dialects of Latin which monophthongize /ai/ to /ɛː/, as in fēnum, without leaving any trace of the urban Latin development.
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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.