Origin: Middle English merlion from Old French esmerillon, diminutive of esmeril, merlin from Old High German smirl, merlin
Origin: ML Merlinus from Welsh Myrrdin from Brythonic an unverified form Mori-dünon from an unverified form mori, sea plush Proto-Celt an unverified form dunom, hill, fortified hill, fort, hence, literally , sea-hill or sea-fortress
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Origin: Middle English, from Anglo-Norman merilun, from Old French esmerillon, diminutive of esmeril, of Germanic origin.
merlin - Cultural Definition
In the legends of King Arthur (see also Arthur), a magician who acts as Arthur's principal adviser.