sentence

Borrowed from Middle French sentence, which came from Latin sententia, meaning a way of thinking or an opinion. That noun traces back to sentiēns, the present participle of sentiō, "to feel or think," rooted in the ancient Proto-Indo-European *sent-, "to feel."

The word started as a term for an opinion or judgment — what someone felt or believed — before narrowing in English to mean a complete grammatical statement.

The facts given don't name another English word sharing this root, so no cognate can be confirmed here.