plancher

Etymology
.

Noun

 * 1) A floor made of wood.
 * 2) A plank.
 * 3)  The underside of a cornice; a soffit.
 * 1)  The underside of a cornice; a soffit.

Verb

 * 1)  To form using planks.

Etymology 1
From.

Noun

 * 1) floor
 * 2) lower limit
 * 3)  floor

Etymology 2
From.

Verb

 * 1)  to study something thoroughly, to work hard on something, to brainstorm