groundsill

[ ground-sil ]

noun

1. the lowermost sill of a framed structure, especially one lying close to the ground.

groundsill

/ ˈɡraʊndˌsɪl /

noun

1. another name for ground plate

Word History and Origins

Origin of groundsill¹

First recorded in 1400–50, groundsill is from the late Middle English word grownsel. See ground ¹, sill