merlin definition by Webster's New World
Origin: Middle English merlion ; from Old French esmerillon, diminutive of esmeril, merlin ; from Old High German smirl, merlin
Origin: Midieval Latin 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
merlin definition by American Heritage Dictionary
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.