grate 2 
(grāt)
(grāt)n.
1. A framework of parallel or latticed bars for blocking an opening.
2. A framework of metal bars used to hold fuel or food in a stove, furnace, or fireplace.
3. A fireplace.
4. A perforated iron plate or screen for sieving and grading crushed ore.
tr.v. grat·ed, grat·ing, grates
To equip with a grate.
[Middle English, from Medieval Latin grāta, alteration of Latin crātis, wickerwork.]