PJ Gen8:5 :ומיא הוו אזלין וחסרין עד ירח עשיריי‏ : the water continued to diminish until the tenth month
See the entire entry for ḥsr vb. to be lacking

PJ Gen8:5 :בתמוז בחד לירחא איתחמיו רישי טווריא‏ : in Tammuz, on the first of the month, the tops of the mountains were seen
See the entire entry for tāmūz n.m. Tammuz (June/July)