-ssa

Etymology
From, from earlier *-s-na, from *-s- (internal locative infix, of uncertain origin but possibly from the lative ending (traditionally held theory), from  or a contraction of  ) +. Cognate with 🇨🇬,.

Suffix

 * 1) ; in, inside

Usage notes

 * See the appendix on Finnish nominal cases for more information on how the inessive case is used.
 * Dialectal forms include, (especially in Western Finnish);. the form  was adopted from the eastern dialects into the standard language.