BT Šab 129b(22) :איידי דנפיק זיקא דשמיה טבוח‏ : since the demon named "slaughterer" emerges
See the entire entry for zīq, zīqā n.m./f. fire flash; storm wind; flatus

BT Šab 129b(22) :מעלי יומא דעצרתא‏ : the eve of Shavuot
See the entire entry for ˁāṣrā, ˁāṣartā n.f. holiday, Shavuot