Cill Lasra

Cill Lasra is the Irish form of the name, and logainm.ie glosses it as 'St. Lasser's church', a gloss attributed to John O'Donovan in his 1836 Ordnance Survey namebook note. No independent etymology was found. The earliest record is a genealogical text of about 1100 that lists a Lassar at Cill Lasra. Later spellings include Kilastra (1181–1212, Alen's Register), Killossri (1529–34) and Killosse...