doggone
adjective
[ ˈdɒɡɒn ]
• used to express feelings of annoyance, surprise, or pleasure.
• "now just a doggone minute"
doggone
verb
• damn; darn (used to express surprise, irritation, or anger).
• "from that moment, doggone it if I didn't see a motivation in Joey!"
Origin:
early 19th century: probably from dog on it, euphemism for God damn it .