Book Nav Stems in -ευ, -αυ, -ου Irregular Nouns 140. Stems in -ω and -ο (§ 141, below) are few, the latter mostly names of women. 141. Greek Noun Stems in -ω and -ο Charts PDF stems_ω_ο _πειθώ.pdf stems_ω_ο_ἥρως.pdf XML Files Chapter-140.xml Chapter-141.xml