τὸ πλῆθος οὐκ εὐαρίθμητον ἦν → the crowd wasn't easy to count, the crowd was not small, it was not a small crowd
equability of temper: P. εὐκολία, ἡ, Ar. and P. ἡσυχία, ἡ, V. τὸ ἡσυχαῖον.
equability of temperature: P. εὐκρασία, ἡ.
