Originally Posted by
79pmooney
I just spent 3 days in the 2-person "bivvy" 3-season tent I bought in 1975. (I don't think the term "bivvy" existed when I bought it.) ,,,
Back then they were called "bivouac sacks." I would see them at the old Army/Navy surplus stores. Soldiers have been bivouacking since the beginning of conflict.
I started hearing the more alliterative term in the 80s.