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This Proto-Indo-European entry contains reconstructed words and roots. As such, the term(s) in this entry are not directly attested, but are hypothesized to have existed based on comparative evidence.



Some argue that it is a deadjectival noun of *deru-, *drew- ‎(hard, firm, strong, solid) with reflexes as Latin dūrus ‎(hard, rough), Old English trum ‎(strong, firm) and Ancient Greek δροόν ‎(droón, strong, mighty).


*dóru n ‎(oblique stem *dréw-)

  1. tree



  • Albanian: dru ‎(wood, tree) (< *druwa < *druh₂o)
  • Anatolian:
  • Armenian:
  • Balto-Slavic: *der(H)wom
    • Latvian: dar̂va ‎(pitch)
    • Lithuanian: dervà ‎(tar, resin), drevė ‎(tree hollow)
    • Slavic: *dervo < PBSl. *der(H)wom (see there for further descendants); *drъvo ‎(wood) < PIE (collective) *druh₂-
  • Celtic:
  • Germanic: *trewą (see there for further descendants)
    • *trewwō (see there for further descendants)
  • Hellenic: *dóru
    • Mycenaean Greek: 𐀉𐀬𐀵𐀗 ‎(du-ru-to-mo, treecutters) < zero-grade *dr̥u
    • Ancient Greek: δόρυ ‎(dóru, tree trunk, wood; spear) < *dóru
    • Ancient Greek: δρῦς ‎(drûs, tree, oak) < (collective) *druh₂-
  • Indo-Iranian: *dāru < *dóru
  • Tocharian: or, with unexplained loss of inital /d/
    • Tocharian A: or ‎(wood)
    • Tocharian B: or ‎(wood), plural ārwa ‎(firewood)