fills and deletes (in the manner as {zi'o}) all terbri of immediately previous word that are not explicitly filled with a sumti
Implicit/omitted zo'e will be deleted. Deletion is only meaningful if the immediately previous word is a brivla with at least one unfilled (explicitly) terbri. In a tanru or other complicated construct, only the most recent word undergoes this terbri deletion (not every term in the construct). A selbri converted to a sumti by gadri has x1 terbri filled for the purposes of this word; likewise is the case for terbri accessed by be or bei; seltau in the main level of a sumti are filled by the gadri as well for the purposes of this word.