bitumenyoudaoicibaDictYouDict
bitumen: see cud
bitumen (n.)youdaoicibaDictYouDict
mid-15c., from Latin bitumen "asphalt," probably, via Oscan or Umbrian, from Celtic *betu- "birch, birch resin" (compare Gaulish betulla "birch," used by Pliny for the tree supposedly the source of bitumen).