ELVISH
elfin, elfish, elvish
(adjective) usually good-naturedly mischievous; “perpetrated a practical joke with elfin delight”; “elvish tricks”
Source: WordNet® 3.1
Proper noun
Elvish
(fantasy) The language spoken by elves.
Etymology
Adjective
elvish (comparative more elvish, superlative most elvish)
Of or having to do with elves; elven.
Synonyms
• see list in elven
Source: Wiktionary
Elv"ish, a.
1. Pertaining to elves; implike; mischievous; weird; also, vacant;
absent in demeanor. See Elfish.
He seemeth elvish by his countenance. Chaucer.
2. Mysterious; also, foolish. [Obs.]
Source: Webster’s Unabridged Dictionary 1913 Edition