grout
UK[ɡraʊt]US[ɡraʊt]
n
a thin mortar used for filling spaces (such as the gaps between wall or floor tiles).
v
to fill or finish with grout.
Etymology
the word "grout" has a murky but distinctly practical origin. it entered middle english as "grout" or "groute" from old french "groute," meaning coarse meal or dregs, which itself likely stemmed from a west germanic root related to grit or coarse particles. this semantic connection to coarse, granular material logically evolved to describe the coarse mortar or plaster used in early construction. over time, its application narrowed specifically to the thin, coarse mortar used for filling gaps between tiles, a meaning that directly links the original sense of gritty substance to its modern, specialized use in building and renovation.
Analysis
the word is a simplex. it is a loanword from a germanic source, entering english from old french. its functional role is as a complete lexical unit.
Examples
we need to mix a fresh batch of grout to finish the bathroom tiles.
after laying the ceramic tiles, the next step is to grout the joints.
the white grout had become discolored and needed professional cleaning.