Douglas Harper's Etymology Dictionary
deboshed
1590s, anglicized spelling of French pronunciation of debauched "dissolute" (see debauch). Obsolete in England after mid-17c., retained in Scotland, and given a revival of sorts by Scott (1826), so that it turns up in 19c. literary works.
Wiktionary
deboshed
vb. (en-past of: debosh)
Usage examples of "deboshed".
Why, thou deboshed fish thou,was there ever man a coward that hath drunk so muchsack as I to-day?