Proto-IE: *serw-
Meaning: whey
Old Greek: oró-s m. (LS: orró-s is f.l. in Hp., Arist., etc.; ọ̄ró-s was coined bei Nic.Th.708) `die wässerige Teil der geronnenen Milch, die Molke, Fäsewasser'
Latin: serum, -ī n. `der wässrige Teil der geronnenen Milch, die Molke, Käsewasser'
Russ. meaning: сыворотка
References: WP II 497 f
Comments: Greek orros and ọ̄ros were declared as fictive ones in LS, but BS (esp. Baltic) forms confirm *serw-. The Greek forms concidered as fictive ones might be real.
