English
agroan
From a- + groan.
Proto-Indo-European *uds- ‘up, out’
Proto-Germanic *uz- ‘out-’
Proto-West Germanic *uʀ- ‘up, out, over’
English a-
Proto-Germanic *grīnaną ‘to whine’
Proto-Germanic *grainōną ‘to howl’
Proto-West Germanic *grainōn
Old English grānian ‘to groan’
Middle English gronen ‘to groan or cry due to birth pangs’
English groan
Today it means
adj groaning
Language periods are conventional ranges, not dates for this word.
Etymograph / agroan