BT Šab 105a(45) :ב{בי}<כו>רא‏ :
See the entire entry for kwr#6 n.m. a wooden pole involved in weaving (??)

BT Šab 105a(45) :מאי בקירוס, מצובייתא‏ : what is (Mishnaic) בקירוס? thrums
See the entire entry for mṣwbytˀ n.f. thrum