glacier-fed

the compound adjective 'glacier-fed' is a modern english formation that transparently combines two elements. the first, 'glacier', entered english via french from the latin 'glacies', meaning ice, which itself traces back to the proto-indo-european root gel- meaning 'cold' or 'to freeze'. the second element, 'fed', is the past participle of the verb 'feed', from old english 'fēdan', meaning to nourish or supply, derived from the pie root pa- meaning 'to protect, feed'. the compound's literal logic is "supplied by a glacier," specifically describing rivers, streams, or lakes whose primary water source is meltwater from a glacier. this term emerged from the vocabulary of physical geography to precisely describe hydrological systems in alpine and polar environments.

Structure: glacier (ice mass) + fed (supplied) glacier (from french, ultimately from latin 'glacies' meaning ice); fed (past participle of 'feed', from old english 'fēdan' meaning to give food/sustenance)