εἶθαρ
From LSJ
ἑτέρως ἠδύνατο βέλτιον ἢ ὡς νῦν ἔχει κατεσκευάσθαι → otherwise they could have been constructed better than they are now (Galen, On the use of parts of the body 4.143.1 Kühn)
English (LSJ)
Adv.
A at once, forthwith, Il.5.337, Theoc.25.213, Antim.16.5, A.R.2.408, Nic.Th.547.
German (Pape)
[Seite 725] VLL. εὐθέως, sogleich, sofort, Il. 5, 337 u. sp. D., wie Theocr. 25, 213 Ap. Rh. 2, 408.
Greek (Liddell-Scott)
εἶθαρ: ἐπίρρ. (εὐθὺς) ἀμέσως, ἐν τῷ ἅμα, εἶθαρ δὲ δόρυ χροὸς ἀντετόρησεν Ἰλ. Ε. 337, Θεόκρ. 25. 213, κτλ.
French (Bailly abrégé)
adv.
aussitôt, sur-le-champ.
Étymologie: DELG on a pensé à ἰθύς, εὐθύς malgré les difficultés phonétiques.