ἰσοφόρος
From LSJ
οὗτος μὲν ὁ πιθανώτερος τῶν λόγων εἴρηται, δεῖ δὲ καὶ τὸν ἧσσον πιθανόν, ἐπεί γε δὴ λέγεται, ῥηθῆναι → this is the most credible of the stories told; but I must relate the less credible tale also, since they tell it
English (LSJ)
ον,
A bearing or drawing equal weights, equal in strength, βόες . . ἥλικες, ἰσοφόροι Od.18.373; τὰ σκέλη τοῖς ὤμοις -φόρα ἔχειν X.Smp.2.20. II proparox., moving regularly, Poll.4.97.