Definition of gallowglass
1 : a mercenary or retainer of an Irish chief
2 : an armed Irish foot soldier
Origin and Etymology of gallowglass
borrowed from Irish gallóglach “soldier from a Scottish clan in the service of an Irish chief,” from gall “Gaul, Scandinavian invader, foreigner” (going back to Middle Irish, borrowed from Latin Gallus “a Gaul”) + óglach “young man, warrior, soldier,” going back to Middle Irish óclach, óglaech, originally derivative (probably after echlach “messenger, attendant,” midlach “man incapable of bearing arms, coward”) of óc “young,” going back to Old Irish óac, going back to Celtic *yowanko- (whence also Welsh ieuanc “young,” Breton yaouank), going back to Indo-European *h2i̯u-h2n-ḱo- — more at 1young ◆The final -ss in the English form is difficult to explain. It may be an English plural -s added superfluously to the Irish plural gallóglaigh, though one would expect this to be evident in early use of gallowglass as a plural. The apparent first known occurrence of the word, however, is galloglasseis, which already shows a singular galloglas(s) as the base form.
First Known Use: circa 1515See Words from the same year
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