bossage

[ baw-sij, bos-ij ]
/ ˈbɔ sɪdʒ, ˈbɒs ɪdʒ /

noun Masonry.

stonework blocked out for later carving.
stonework, as rusticated ashlar, having faces projecting beyond the mortar joints.

Origin of bossage

1695–1705; < French, equivalent to bosse boss2 + -age -age
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019