Sense

1. without brother or sister

Examples

• ἀδελφή τ’, εἰ γεγῶσα τυγχάνει ‐ οἱών στερεῖσα διπτύχων νεανιῶν ἀνάδελφοσ ἔσται. (Euripides, Iphigenia in Tauris, episode, anapests 1:7)
• καὶ γὰρ οὐδ’ ἐγώ, ξένοι, ἀνάδελφόσ εἰμι, πλὴν ὅσ’ οὐχ ὁρῶσά νιν. (Euripides, Iphigenia in Tauris, episode, anapests 4:20)
• πῶσ μόνη σωθήσομαι, ἀνάδελφοσ ἀπάτωρ ἄφιλοσ; (Euripides, episode 4:18)

Similar forms

• ἀνάδελφος (2)
• ἀναδέλφων (1)
• ἀνάδελφός (1)

Source: Henry George Liddell. Robert Scott. "A Greek-English Lexicon". revised and augmented throughout by. Sir Henry Stuart Jones.