casement
noun, proper noun
Forms casements
- noun A window sash that is hinged on the side.
- noun A window having such sashes; a casement window.ᵂᵖ
- noun (military) A casemate. Some writers and readers consider casement a catachresis when used in this sense.
- proper noun A surname from Irish.
Etymology
Reduced Anglicized form of Irish Mac Asmuint (“son of Asmund”), a personal name derived from Old Norse Asmundr, which is composed by the elements áss (“god”) + mundr (“protection”).
Webster’s 1913
- noun A window sash opening on hinges affixed to the upright side of the frame into which it is fitted. (Poetically) A window.
Etymology [Shortened fr. encasement. See Incase 1st Case, and cf. Incasement.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “casement”, CC BY-SA 4.0. Details