Talk:aken

Estonian etymology
Is there a source for it being a Proto-Slavic borrowing?

http://www.eki.ee/dict/ety/index.cgi?Q=aken&F=M&C06=et gives it as being borrowed from Old East Slavic (here given as "Old Russian" but I think these are synonyms) Strombones (talk) 20:18, 10 June 2016 (UTC)