the armhole opening in a garment.
Also arms·eye [ahrmz-ahy] /ˈɑrmzˌaɪ/.
Origin of armscye
arm1 + scye armhole (orig. Scottish, Ulster dial. s(e)y, sie, of uncertain origin); reanalyzed by folk etymology as “arm's eye”
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019