Etymology

From Proto-Brythonic *skuïd, from Proto-Celtic *skētos ‎(“shield”), from Proto-Indo-European *skeyt-, from *skey- ‎(“to cut, separate”). Cognate with Cornish skoes ‎(“shield”), Welsh ysgwyd ‎(“shield”), Irish sciath ‎(“shield”). Related to Latin scūtum ‎(“shield”) and Russian щит ‎(ščit).