Proto-IE: *stembh-
Meaning: to strengthen, to resist
Tokharian: B śćänm-, śćämn- 'to bind on, bind together, establish' (Adams 638)
Old Indian: stabhnā́ti, stabhnóti, stámbhate, -ti, pf. tastámbha, tastabhúḥ `to fix firmly, support, hold up; stop, stop up', ptc. stabhitá-, stabdha-; stambha- m. `post, pillar, column; support; stoppage, suppression', stambhana- n. `strengthening, supporting; stopping'
Avestan: stǝmbana- `Stütze', stawra- `fest'
Other Iranian: NPers sitabr, istabr `stark, gewaltig'
Old Greek: a-stemphḗs `unerschütterlich, fest'; stómpho-s m. `schwülstiger, hochtrabende Rede'
Russ. meaning: укреплять(ся), оказывать сопротивление
References: WP II 623 f
