411 REFERENCE · Wiktionary
-τις
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
τις τίς -τίς -tis
Ancient Greek
Etymology
grc :inh grk-pro:<alt:*-tis><ety:inh<ine-pro:*-tis<id:action nouns>>>
From grc ine-pro *-tis
Suffix
grc suffix -τῐς
grc Earlier form -σῐς, retained after dentals grc δ, θ, σ, τ
grc *πιθ-τις > grc πῐ́στῐς