of, relating to, or resembling an elf; mischievous, playful, or otherworldly in a way similar to elves.
From elf plus -ish (meaning 'like' or 'somewhat'). The -ish suffix creates adjectives from nouns, as in 'foolish' or 'childish'.
Elfish behavior often suggests mischief and magic—while elfin describes delicate beauty, elfish suggests playful trickery and supernatural mischief.
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