OriginInherited from Proto-Slavic *lasta.
Formslásta(canonical, feminine) · ла́ста(Cyrillic) · lasta(nominative, singular) · laste(nominative, plural) · laste(genitive, singular) · lasta(genitive, plural) · lasti(dative, singular) · lastama(dative, plural) · lastu(accusative, singular) · laste(accusative, plural) · lasto(singular, vocative) · laste(plural, vocative) · lasti(locative, singular) · lastama(locative, plural) · lastom(instrumental, singular) · lastama(instrumental, plural)
Source: Wiktionary — CC BY-SA 4.0