suture

Suture comes from Middle English suture, borrowed from Latin sūtūra, itself built from the verb suere, meaning "to sew, join, or tack together," plus the suffix -tūra, which turns a verb into an action noun.

The facts don't give a detailed shift in meaning — the word has carried the sense of a joining-together, formed from the act of sewing, since its Latin origin.

It shares its root, suere, "to sew," with the deeper idea of sewing itself, since -tūra simply names the action of that verb.