elfin

[ el-fin ]
/ ˈɛl fɪn /

adjective

of or like an elf.
small and charmingly spritely, merry, or mischievous.

noun

an elf.

Origin of elfin

1560–70; alteration of Middle English elven elf, Old English elfen, ælfen nymph, equivalent to ælf elf + -en feminine suffix (cognate with German -in); ælf cognate with German Alp nightmare, puck, Old Norse alfr elf
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for elfin

elfin

/ (ˈɛlfɪn) /

adjective

of, relating to, or like an elf or elves
small, delicate, and charming

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012