Dictionary entry

ἑτερόγλωσσος

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

**† ἑτερό-γλωσσος

(Att. -ττος), -ον, [in Aq.: Ps 113 (114):1, Is 33:19 *;]

of alien speech, of another tongue (v. Cremer, 681): I Co 14:21 (aliter in LXX).†