English
hotwash
From hot + wash.
Proto-Indo-European *keHy- ‘to heat; to become hot’
Proto-Germanic *haitaz ‘hot’
Proto-West Germanic *hait
Old English hāt ‘hot’
Middle English hot
English hot
Proto-Indo-European *wed- ‘wet’
Proto-Germanic *waskaną ‘to wash’
Proto-West Germanic *waskan ‘to wash’
Old English wascan ‘to wash’
Middle English wasshen ‘to wash’
English wash
The story
Some sources say this refers to the practice by some soldiers of dousing their weapons in extremely hot water as a means of removing grit and residue after firing. Others interpret "hot" as referring to immediacy (not temperature), and "wash" to be used metaphorically (compare come out in the wash).
Today it means
noun Discussions and evaluations of an agency's (or multiple agencies') performance following an exercise, training session, or major event.
Language periods are conventional ranges, not dates for this word.
Etymograph / hotwash