LogeionPerseus analysis of ἦμος:
ἦμος (at which time, when): indeclform (adverb)
LSJ entry
ἦμος
ἦμος,
Dor. ἆμος,
Adv. of Time, correl. to τῆμος,
A. at which time, when,
in Hom.,
freq. in protasi with τῆμος, τῆμος ἄρα . . , τῆμος δή . . ,
etc., in apodosi (v. τῆμος)
; ἆμος . . , τᾶμος . . Theoc. 13.25;
ἦ. . . , δὴ τότε Il. 1.475,
al.: folld. by δὴ τότʼ ἔπειτα Od. 17.1;
by καὶ τότε δή Il. 8.68;
by καὶ τότʼ ἔπειτα 1.477;
by καὶ τότε δή ῥα 16.779;
by ἄρα or ῥά alone, Od. 2.1,
19.428,
cf. S. Aj. 935 (lyr.); by τηνικαῦτα Hdt. 4.28;
by τότε S. Tr. 155:
rarely without some particle in apodosi, as Od. 3.491,
E. Hec. 915 (lyr.); ἦ. ὅτε A.R. 4.267,
452,
1310,
Orph. A. 120,
IG 14.1389i25, etc.: rarely with Subj., without ἄν, ἦ. δʼ ἠέλιος . . οὐρανὸν ἀμφιβεβήκῃ Od. 4.400;
ἦ. ἥλιος δύνῃ Hp. Mul. 1.23,
cf. Prorrh. 2.4 (v.l.).