elfin (http://definr.com/elfin)

     adj 1: suggestive of an elf in strangeness and otherworldliness;
            "thunderbolts quivered with elfin flares of heat
            lightning"; "the fey quality was there, the ability to
            see the moon at midday"- John Mason Brown [syn: fey]
     2: small and delicate; "she was an elfin creature--graceful and
        delicate"; "obsessed by things elfin and small" [syn: elflike]
     3: relating to or made or done by or as if by an elf; "elfin
        bells"; "all the little creatures joined in the elfin
     4: usually good-naturedly mischievous; "perpetrated a practical
        joke with elfin delight"; "elvish tricks" [syn: elfish,