Reconstruction:Proto-Indo-European/pérkus

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

Proto-Indo-European

Etymology

From *perkʷ- (“oak”) ‎ *-us.

Noun

*pérkus m

1. oak

Inflection

Athematic, proterokinetic
	singular
nominative	*pérkus
genitive	*pr̥kʷéws
	singular	dual	plural
nominative	*pérkus	*pérkuh₁(e)	*pérkewes
vocative	*pérku	*pérkuh₁(e)	*pérkewes
accusative	*pérkum	*pérkuh₁(e)	*pérkums
genitive	*pr̥kʷéws	*?	*pr̥kʷéwoHom
ablative	*pr̥kʷéws	*?	*pr̥kʷúmos, *pr̥kʷúbʰos
dative	*pr̥kʷéwey	*?	*pr̥kʷúmos, *pr̥kʷúbʰos
locative	*pr̥kʷéw, *pr̥kʷéwi	*?	*pr̥kʷúsu
instrumental	*pr̥kʷúh₁	*?	*pr̥kʷúmis, *pr̥kʷúbʰis

Descendants

• Proto-Celtic: *kʷerkʷus
  • ⇒ Proto-Celtic: *kʷerkʷernos (“oak people”)
    • Gallaecian:
      • → Latin: Querquernī (ethnonym)
    • Venetic:
      • → Latin: Quarquenī (ethnonym)
  • ⇒ Proto-Celtic: *kʷerxtos (“bush”)
    • Proto-Brythonic: *perθ
      • Cornish: Penberth (toponym)
      • Middle Welsh: perth (“bush, hedge, thicket”)
    • Old Irish: ceirt (“apple-tree”)
• Proto-Germanic: *ferhuz (“body; life; oak-tree”) (see there for further descendants)
  • ⇒ Proto-Germanic: *ferhwą (“life, essence”) (see there for further descendants)
• Proto-Italic: *kʷerkʷus
  • Latin: quercus (“oak-tree”) (see there for further descendants)