underside

The lower side of anything. "This being hollowed out, on the under- side, like s scoop."- Paley: Natural Theology, ch. x. under-skinker, s. *1. Ord. Lang.: An under-drawer or tapster. (Shakesp.: Henry IV ., Pt . I. , ii. 4.) 2. Naut.: The a istant to the purser's steward. under-skirt, s. A skirt under a dre . "The panel on the under - skirt may consist of black lace flounces." - London Daily Telegraph .