The name 'Nizdylo' is restored based on the patronymic from 1185, Roman Nizdilovych - a voivode of Kyiv. This is a phonetic variant of the name Nizdilo, with its root derived from the verb *-zbd- (compare the Russian "создавать," Czech "zed'" - 'wall,' and Slovene "zida" - 'the same'). A morphemic analysis of the name suggests that its original meaning might have been 'builder.'