UNDERPINNING


Meaning of UNDERPINNING in English

noun Date: 15th century the material and construction (as a foundation) used for support of a structure, something that serves as a foundation ; basis , support , underwear , a person's legs

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.