Reconstruction:Proto-Celtic/-iyos

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 an enlargement of *-os (agent suffix) by analogy with the feminine abstract suffix *-iyā, ultimately from Proto-Indo-European *-ós (agent suffix).

Suffix

*-iyos m

1. forms agent nouns

   ‎*sag- (“to seek”) + ‎*-iyos → ‎*sagiyos (“seeker”)

Inflection

Masculine o-stem
	singular	dual	plural
nominative	*-yos	*-you	*-yoi
vocative	*-ye	*-you	*-yoi
accusative	*-yom	*-you	*-yoms
genitive	*-yī	*-yous	*-yom
dative	*-yūi	*-yobom	*-yobos
locative	*-yei	*?	*?
instrumental	*-yū	*-yobim	*-yūis

Derived terms

Proto-Celtic terms suffixed with *-iyos

Descendants

• Proto-Brythonic: *-ɨð
  • Welsh: -ydd