COS could be ‘a foot’ or ‘a leg’ in medieval Irish, just as LÁM could be ‘a hand’ or ‘an arm’. The two could also be combined. A 14th-century account of the wars fought between two branches of the Uí Briain kings, for example, refers to CÚAL DO COSLÁMAIB, ‘a pile of leg-arms’, that is ‘a pile of legs and arms'. And the same text mentions also CENDCHOSLÁMA NA CATH ‘the head-leg-arms of the battles’, in other words, the heads and legs and arms that had been cut off in the battles!
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