α. Middle English thrugh-perse, Middle English thurgh-perce, Middle English thurghe-perse, Middle English þurȝe-perse, Middle English þurth-perce, 1600s 1800s through-pierce.
β. Middle English thorugh-perce, Middle English thoruh-pershe, Middle English thorw-perce, Middle English thorwgh-persche, Middle English thuruȝ-perce, Middle English thurw-perce, 1500s 1700s thorough-pierce.