OriginFrom Russian Чека́ (Čeká), from ЧК (ČK), acronym of Чрезвыча́йная Коми́ссия (Črezvyčájnaja Komíssija).
Formstjeka(indefinite, nominative, singular) · tjekas(genitive, indefinite, singular) · tjekan(definite, nominative, singular) · tjekans(definite, genitive, singular) · tjekor(indefinite, nominative, plural) · tjekors(genitive, indefinite, plural) · tjekorna(definite, nominative, plural) · tjekornas(definite, genitive, plural)
Source: Wiktionary — CC BY-SA 4.0