Usage: 4 forms in 113 verses
Liddell-Scott-Jones
ἀλλ᾽ ἢ (all᾽ ē) but only G:CONJ
combination of: ἤ (ἀλλά+ἤ)
ἀλλ᾽ ἤ,,
={ἀλλά} 1.3, except, but, after negatives, especially οὐδείς or μηδείς, which are often joined with ἄλλος or ἕτερος, as οὐδεὶς ἀλλ᾽ ἢ ἐκείνη no one except her, [Refs 5th c.BC+]; ἀργύριον μὲν οὐκ ἔχω ἀλλ᾽ ἢ μικρόν τι[Refs 5th c.BC+]:—after questions implying a negative, [ἀλλ᾽ ἢ (bis). (This form seems to arise from a confusion of οὐδὲν ἄλλο ἤ">Refs 5th c.BC+] other than, except,[Refs 5th c.BC+] except that.., and οὐδὲν ἄλλο.. ἀλά.)