-siniz
See also: -sınız
Azerbaijani
Etymology
Cognate with Turkish -siniz, Turkmen -siz. From Proto-Turkic *siŕ, but affected by *-iŋiŕ (“second person possessive suffix”).
Suffix
-siniz
- Second-person plural present simple copula (used suppletively in place of *imək):
- [you (plural or polite)] are
Turkish
Suffix
-siniz
- Suffix of verb "to be" for subject "you" (formal or plural).
- Gerginsiniz. ― You are nervous.