G0126
ἀΐδιος
eternal
ἀΐδιος, -ον (ἀεί), [in LXX: Wis.7:26, 4Ma.10:15 * ;] everlasting (frequently in Inscr.; MM, VGT, see word): Rom.1:20, Ju 6.† SYN.: αἰώνιος, also frequently in Inscr. (Deiss., BS, 363 J. The etymological distinction between the meanings of the two words seems not to be retained in late Greek (see Thayer, see word, αἰώνιος; cf. Cremer, 79, 611). (AS)
Full Thayer's lexicon entry
ἀΐδιος — aḯdios
ἀΐδιος, (for ἀείδιος from ἀεί), eternal, everlasting: (Wis 7:26) Rom 1:20; Jud 1:6. (Homer hymn. 29, 3; Hesiod scut. 310, and from Thucydides down in prose; (frequent in Philo, e. g.de profug. § 18 (ζῶν ἀΐδιος), § 31;de opif. mund. § 2, § 61;de cherub. § 1, § 2, § 3;de post. Cain. § 11 at the end, Synonym: see αἰώνιος).)
2 occurrences
Romans (1), Jude (1)