Meaning of UNDERLAY in English

UNDERLAY

v. & n. --v.tr. (past and past part. -laid) lay something under (a thing) to support or raise it. --n. a thing laid under another, esp. material laid under a carpet or mattress as protection or support. [OE underlecgan (as UNDER-, LAY(1))]

English main colloquial, spoken dictionary.      Английский основной разговорный словарь.