sha.yit denotes thornbush growth, pictured in Isaiah as spreading over neglected land or being consumed by fire.

The occurrences depict thornbush growth in landscapes left uncultivated or overtaken by briers and thorns, and in imagery of such growth being burned or consumed. The term is consistently a masculine singular noun, usually absolute, with one construct occurrence in Isaiah 10:17.

1. Thornbush growth overtaking land · dominant

   In Isaiah 5:6 the absolute noun occurs in a clause where land is neither pruned nor hoed and the APB renders that “thorn and thornbush will ascend.” Isaiah 7:23, Isaiah 7:24, and Isaiah 7:25 likewise place the absolute form in descriptions of former vine land and cultivated hills becoming or being feared because of “briers and thorns.”

   Isaiah 5:6Isaiah 7:23Isaiah 7:24Isaiah 7:25
2. Thornbush set for burning · common

   In Isaiah 10:17 the construct form stands in the clause in which a fire and flame “will burn and consume his thornbush and his thorn.” In Isaiah 27:4 the absolute form occurs with thorn in a battle image, where the APB renders the speaker stepping through them and burning them together.

   Isaiah 10:17Isaiah 27:4

In the Anselm Project Bible: The APB commonly presents the term alongside “thorn,” using “thornbush” in Isaiah 10:17, Isaiah 27:4, and Isaiah 5:6, while Isaiah 7:23, Isaiah 7:24, and Isaiah 7:25 render the paired vegetation as “briers and thorns.” These phrases show the verse-level presentation rather than a fixed translation of the lemma.