ELFIN Meaning of ELFIN in English [elf.in] adj [irreg. fr. elf] (1596) 1 a: of, relating to, or produced by an elf b: resembling an elf esp. in its tiny size "~ portions" 2: having an otherworldly or magical quality or charm Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012