Two words
May be 2 words combined (casti+bulum) If not obvious, probably incorrect
cast.i N 2 2 GEN S N
cast.i N 2 2 LOC S N
castum, casti N (2nd) N [XEXES] uncommon
festival/period of ceremonial/required abstinence/continence dedicated to a god
cast.i ADJ 1 1 GEN S M POS
cast.i ADJ 1 1 GEN S N POS
cast.i ADJ 1 1 NOM P M POS
cast.i ADJ 1 1 VOC P M POS
castus, casta -um, castior -or -us, castissimus -a -um ADJ [XXXAO]
pure, moral; chaste, virtuous, pious; sacred; spotless; free from/untouched by;
*