damn it, An expression of frustration or anger, often used when something goes wrong.
not give a damn, To not care at all about something.
Word Origin
Language
Latin
Original word
damnāre
Originally meant
to condemn, to inflict loss upon
Background
The word 'damn' comes from the Latin 'damnāre,' which means to condemn or inflict loss. It entered English through Old French 'damner.' Originally, it had a strong religious connotation, often referring to being condemned to hell.