This agricultural term describes grain that grows spontaneously in the second year from seeds fallen during the previous harvest, without intentional planting. Both occurrences appear in identical contexts: 2 Kings 19:29 and Isaiah 37:30, where God gives Hezekiah a sign. During the Assyrian siege, Israel will eat self-sown grain for two years, then return to normal agriculture in the third year. This phenomenon was well-known in ancient farming—enough seeds dropped during harvest to produce a viable (though smaller) crop the next season. The term parallels saphiach (aftergrowth). Spanish lo-que-rebrota (what resprouts) captures the spontaneous regrowth well. The sign promised survival without normal farming during crisis.