"Grate" is the base word, and "-ate" is the suffix that changes its meaning to "make or become."
接尾辞の「-ate」が「火格子」の意味をどのように変えるかの例をいくつか紹介します。
* 火格子 (verb):to rub against a rough surface
* Grateful (adjective):feeling or showing gratitude
* 火格子 (noun):a framework of bars for protecting a fireplace or other opening