terribly

adverb

1. in a terrible manner.
2. Informal. extremely; very: It’s terribly late. I’m terribly sorry.

adverb

1. in a terrible manner
2. (intensifier)you’re terribly kind

adv.“dreadfully,” 1520s, see terrible + -ly (2); in the sense of “extremely” it is first recorded 1833; in the sense of “extremely badly” it dates from 1930.