suffix · femininethird declension
-ōsis
-ōsis f (genitive -ōsis or -ōseōs or -ōsios)
Meaning
- New Latinmorpheme-osis
tūberculum (“tubercle”) + -ōsis → tūberculōsis (“tuberculosis”)
Origins
From Ancient Greek -ωσις (-ōsis, “state, abnormal condition, or action”), from -όω (-óō) stem verbs + -σις (-sis). This suffix was already found in Classical Latin terms borrowed from Ancient Greek (e.g. metamorphōsis, from Ancient Greek μεταμόρφωσις (metamórphōsis), itself from μετᾰμορφόω (metămorphóō) + -σῐς (-sĭs)).