Words related to *syu-
"fashionable dressmaking or design" (short for haute couture), 1908, from French couture, literally "dressmaking, sewing," from Old French costure (12c.), from Vulgar Latin *consutura, from past participle of Latin consuere "to sew together," from assimilated form of com "with, together" (see com-) + suere "to sew" (from PIE root *syu- "to bind, sew"). Used as a collective term for "women's fashion designers." At first a French word in English; it came down out of italics 1940s.
Old English seam "seam, suture, junction," from Proto-Germanic *saumaz (source also of Old Frisian sam "hem, seam," Old Norse saumr, Middle Dutch som, Dutch zoom, Old High German soum, German Saum "hem"), from PIE root *syu- "to bind, sew."
Chidynge and reproche ... vnsowen the semes of freendshipe in mannes herte. [Chaucer, "Parson's Tale," c. 1386]
Meaning "raised band of stitching on a ball" is recorded from 1888. Geological use is from 1590s.