Proto-IE: *pel- (Gr pt-)
Meaning: fenced settlement, stronghold
Old Indian: pūr f. (pūrṣú, púram, puráḥ) `rampart, wall, fortress, city'; pura- n., puri-, purī f. `fortress, town'
Old Greek: póli-s, ep., kypr., thess. ptóli-s, -eōs, ion. -ios/ēos f. `Burg, Feste, Stadt, Stadtgemeinde, Staat'
Russ. meaning: укрепленное поселение