dagnab1
/ˈdaɡˌnab/US informal (euphemism, often humorous or in representations of rural speech)
adjective
= darn.
adverb
= darn.
exclamation
Expressing annoyance or amazement: ‘darn!’.
Origin
1930s; earliest use found in The Frederick Post. From dagnab.
dagnab2
/ˌdaɡˈnab/US informal (euphemism, often humorous or in representations of rural speech)
verb
[with object] = darn.
Origin
Early 20th century; earliest use found in The Washington Post. Euphemistic alteration of God damn Compare dod-rot, doggone, goldarn adjective adverb.