Reconstruction:Proto-Celtic/madawyos

This Proto-Celtic 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-Celtic

Etymology

From unattested adjective *madawos +‎ *-yos, presumably from Proto-Indo-European *mh₂dh₂-wó-s, possibly related to *madyeti (“to break”), perhaps from *meh₂d- (“to be wet”).

Adjective

*madawyos

1. futile
2. useless

Alternative reconstructions

• *madyos

Inflection

O/ā-stem
masculine	singular	dual	plural
nominative	*madauyos	*madauyou	*madauyoi
vocative	*madauye	*madauyou	*madauyoi
accusative	*madauyom	*madauyou	*madauyoms
genitive	*madauyī	*madauyous	*madauyom
dative	*madauyūi	*madauyobom	*madauyobos
instrumental	*madauyū	*madauyobim	*madauyobis
feminine	singular	dual	plural
nominative	*madauyā	*madauyai	*madauyās
vocative	*madauyā	*madauyai	*madauyās
accusative	*madauyam	*madauyai	*madauyams
genitive	*madauyās	*madauyous	*madauyom
dative	*madauyai	*madauyābom	*madauyābos
instrumental	*?	*madauyābim	*madauyābis
neuter	singular	dual	plural
nominative	*madauyom	*madauyou	*madauyā
vocative	*madauyom	*madauyou	*madauyā
accusative	*madauyom	*madauyou	*madauyā
genitive	*madauyī	*madauyous	*madauyom
dative	*madauyūi	*madauyobom	*madauyobos
instrumental	*madauyū	*madauyobim	*madauyobis

Declension of the comparative
masculine	singular	dual	plural
nominative	*madauyyūs	*?	*madauyyoses
vocative	*madauyyūs	*?	*madauyyoses
accusative	*madauyyosam	*?	*madauyyosams
genitive	*madauyisos	*?	*madauyisom
dative	*madauyisei	*?	*madauyisbos
instrumental	*madauyisī	*?	*madauyisbis
feminine	singular	dual	plural
nominative	*madauyyūs	*?	*madauyyoses
vocative	*madauyyūs	*?	*madauyyoses
accusative	*madauyyosam	*?	*madauyyosams
genitive	*madauyisos	*?	*madauyisom
dative	*madauyisei	*?	*madauyisbos
instrumental	*madauyisī	*?	*madauyisbis
neuter	singular	dual	plural
nominative	*madauyis	*?	*?
vocative	*madauyis	*?	*?
accusative	*madauyis	*?	*?
genitive	*madauyisos	*?	*madauyisom
dative	*madauyisei	*?	*madauyisbos
instrumental	*madauyisī	*?	*madauyisbis

Descendants

• Proto-Brythonic: *madaw f
  • Old Breton: madau
  • Middle Welsh: maðeu
    • Welsh: maddau
• Old Irish: madae
  • Middle Irish: mada, muda