Proto-IE: *ghrenǝdh- (/ *ghrenǝd-)
Meaning: to pound, to scrape; sand, meal, flour
Old Greek: khóndro-s m. 'granule; lump; groats of wheat or spelt; gristle, cartilage'; khondró- 'granular, coarse'
Latin: frendō, -ere, frē(n)sum `(mit den Zähnen) knirschen'
Russ. meaning: измельчать, скрести; песок, мука́
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