Etymology
Advertisement

staircase (n.)

also stair-case, 1620s, originally the enclosure of the stairs, from stair + case (n.2) in its sense "frame;" compare former window-case, door-case.

Advertisement
Advertisement
Definitions of staircase

staircase (n.)
a way of access (upward and downward) consisting of a set of steps;
Synonyms: stairway
From wordnet.princeton.edu