English
grouter
From grout + -er.
Formed from grout + -er
Proto-Indo-European *gʰer- ‘to yearn for’
Proto-Germanic *grūtą
Proto-West Germanic *grūt
Old English grūt ‘dregs’
Middle English growte ‘a sort of wort or the beer made from it’
English grout
Today it means
noun One who grouts.
Language periods are conventional ranges, not dates for this word.
Etymograph / grouter