[eu-] comb form [ME, fr. L, fr. Gk, fr. eu well, fr. neut. of eys good; perh. akin to L esse to be] 1 a: well: easily "euclase"--compare dys- b: good "eudaemonism"--compare dys-
2: true "euchromatin"
[eu-] comb form [ME, fr. L, fr. Gk, fr. eu well, fr. neut. of eys good; perh. akin to L esse to be] 1 a: well: easily "euclase"--compare dys- b: good "eudaemonism"--compare dys-
2: true "euchromatin"
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012