The story
- Old English · inherited fromsēamestre“seamstress”
- Middle English · inherited fromsemster
- English todayseamster
From Middle English semster, semestre, from Old English sēamestre (“seamstress”), equivalent to seam + -ster. Cognate with Scots semistar, semstar (“seamstress”).
Etymology from Wiktionary, CC BY-SA 4.0.