BT Tan 19b(1) :ביצורתא מדינתא אמדינתא כפנא‏ : what is scarcity? When there is famine in one province on top of another
See the entire entry for ˀ_ prep. upon, at

BT Tan 19b(1) :נהרא אנהרא ביצורתא מדינתא אמדינתא כפנא‏ : (having to transport food from) one canal to another is a shortage; one province to another is a famine
See the entire entry for biṣṣurā, biṣṣurtā n.f. drought

BT Tan 19b(1) :נהרא אנהרא ביצורתא מדינתא אמדינתא כפנא‏ : (bringing food from) one canal to another [lit. from a canal to a canal] is a shortage; (from) one province to another is a famine
See the entire entry for kp̄en, kapnā n.m. hunger