Ceil
Ceil (sēl) , transitive verb
[From an older noun, from French ciel heaven, canopy, from Latin caelum heaven, vault, arch, covering; compare Greek koi^los hollow.]
1.
To overlay or cover the inner side of the roof of; to furnish with a ceiling; as, to ceil a room.
The greater house he ceiled with fir tree.
2.
To line or finish a surface, as of a wall, with plaster, stucco, thin boards, or the like.