ἐθελοντηδόν
From LSJ
ἀσκέειν, περὶ τὰ νουσήματα, δύο, ὠφελέειν, ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English (LSJ)
Adv.
A voluntarily, spontaneously, Th.8.98, D.C.53.8; f.l. for sq., Plb.6.31.2.
German (Pape)
[Seite 718] freiwillig, von freien Stücken, Thuc. 8, 98 u. Folgde, wie D. C. 53, 8.
Greek (Liddell-Scott)
ἐθελοντηδόν: ἐπίρρ., ἑκουσίως, Θουκ. 8. 9, Πολύβ. 6. 31, 2.
French (Bailly abrégé)
adv.
volontairement.
Étymologie: ἐθέλω, -δον.
Spanish (DGE)
adv. voluntariamente, espontáneamente Th.8.98, D.C.53.8.2.