Old Church Slavonic стати ←
Proto-Indo-European *steh₂- (derived)
←
Proto-Slavic *stati (inherited)
→
Bulgarian стана (inherited)
→
Old Church Slavonic старъ (suffix)
→
Old Church Slavonic станъ (mention)
→
Old Church Slavonic настати (prefix)
→
Old Church Slavonic въстати (link)