Variant spelling (now archaic) of 'bivouacked'; camped temporarily in the open, especially during military operations.
This is an older spelling variant of 'bivouacked,' from French 'bivouac,' which itself came from German 'Beiwacht' (additional guard watch). The spelling 'bivouaced' represents an earlier Anglicization that fell out of standard use.
The original German word 'Beiwacht' literally means 'extra watch'—soldiers sleeping in the field weren't really sleeping at all but maintaining constant vigilance, so the name captures that exhausting reality of bivouacking.
Complete word intelligence in one call. Free tier — 50 lookups/day.