BT San 96a(14) :אזל אשכח דפא מתיבותא דנח‏ : he went (and) found a plank from Noah's ark
See the entire entry for dap̄, dappā n.m. tablet, column

BT San 96a(14) :דפא מתיבותא דנח‏ : a plank from Noah’s ark
See the entire entry for tēḇō, tēḇōṯā n.f. chest; ark