Apparently a primary verb (perhaps akin to eiko through the idea of faintness as a copy); to resemble -- be like.

see GREEK eiko

εἰδωλολάτραις — 2 Occ.
εἰδωλολάτρης — 2 Occ.
εἴδωλα — 3 Occ.
εἰδώλῳ — 1 Occ.
εἰδώλων — 4 Occ.
εἴδωλον — 2 Occ.
εἰδώλου — 1 Occ.
εἰκῇ — 6 Occ.
εἴκοσι — 11 Occ.
εἴξαμεν — 1 Occ.
εἰκὼν — 6 Occ.
εἰκόνα — 10 Occ.
εἰκόνι — 4 Occ.
εἰκόνος — 3 Occ.
εἰλικρινείᾳ — 1 Occ.
εἰλικρινείας — 2 Occ.
εἰλικρινῆ — 1 Occ.
εἰλικρινεῖς — 1 Occ.
ᾖ — 43 Occ.
ἤμην — 15 Occ.