Meaning of UNDERLAY in English

UNDERLAY

/ ˈʌndəleɪ; NAmE ˈʌndərleɪ/ noun

[ U , C ] a layer of thick material placed under a carpet to protect it

••

WORD ORIGIN

Old English underlecgan (from under- and the verb lay ).

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.