Sew
Old English siwan, of Germanic origin, from an Indo-European root shared by Latin suere and Greek suein .
wiktionary
From Middle English sewen, seowen, sowen, from Old English sīwian, sēowian, sēowan(“to sew, mend, patch, knit together, link, unite”), from Proto-Germanic *siwjaną(“to sew”), from Proto-Indo-European *syewh₁-(“to sew”). Cognate with Scots sew(“to sew”), North Frisian saie, sei(“to sew”), Saterland Frisian säie(“to sew”), Danish sy, Polish szyć, Russian шить(šitʹ), Swedish sy, Latin suō, Sanskrit सीव्यति(sī́vyati). Related to seam.
Back-formation from sewer(“a drain”).
From Middle English sew(“broth”), from Old English sēaw(“sap, juice”), from Proto-West Germanic *sauw.
etymonline
sew (v.)
Old English siwian "to stitch, sew, mend, patch, knit together," earlier siowian, from Proto-Germanic *siwjanan (source also of Old Norse syja, Swedish sy, Danish sye, Old Frisian sia, Old High German siuwan, Gothic siujan "to sew"), from PIE root *syu- "to bind, sew." Related: Sewed; sewing. To sew (something) up "bring it to a conclusion" is a figurative use attested by 1904.
