Late Middle English; earliest use found in Geoffrey Chaucer (c1340–1400), poet and administrator. Probably from on grufe, with reduction of the first element.
Definition of agroof in US English:
agroof
adverbəˈɡruːf
Scottish
In or into a prone position; face downwards.
Origin
Late Middle English; earliest use found in Geoffrey Chaucer (c1340–1400), poet and administrator. Probably from on grufe, with reduction of the first element.