Reconstruction:Proto-Indo-European/-yōs

Etymology
For **-yoss (stem + nominative *-s). It was directly added to the e-grade root (if there was one) rather than to the stem of the adjective.

Usage notes
Adverbs were formed by using the stem,, without any ending.

Derived terms

 * *-is-ō ~ *-is-n-es
 * , also
 * *-is-tos
 * , also
 * *-is-(t)m̥mos
 * Gheg: ,
 * Tosk: ,
 * *-is-(t)m̥mos
 * Gheg: ,
 * Tosk: ,
 * Gheg: ,
 * Tosk: ,
 * Gheg: ,
 * Tosk: ,

Descendants

 * (accusative )
 * , accusative
 * ( is lost in palatalization)
 * (with conflated from the  variant)
 * ( is lost in palatalization)
 * (with conflated from the  variant)
 * (with conflated from the  variant)