Ga•thicPronunciation: (gä'tik), [key]
an ancient Iranian language of the Indo-European family; the language in which the Gathas were written. Cf. Avestan.
of, pertaining to, or expressed in this language.
of or pertaining to the Gathas.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.