*kʷetwōr

http://lila-erc.eu/data/lexicalResources/BrillEDL/id/etymon/pit1000 an entity of type: Etymon

Etymology for: quattuor (la1350)
nom.n. *kʷetwōr (>> Lat. *kʷatwōr)
*kʷetwōr 
121130 
PIt 

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