See also: ε; Ε; ,ε; Ὲ; ἔ; ἕ; and Appendix:Variations of "e" Phrygian Etymology From Proto-Indo-European *h₁é (“and then”). Cognate with Sanskrit अ- (a-), Ancient Greek ἐ- (e-). Prefix ε- (e-) the augment, an inseparable prefix used to form the past tense See also εδαεσ (edaes) εσταες (estaes) Augment (Indo-European) on Wikipedia.Wikipedia Wikiwand - on Seamless Wikipedia browsing. On steroids.