Apologetic (adjective)

1. Feeling or expressing remorse for a fault or offense.
2. Feeling or expressing regret or remorse for something done or said.

Origin:

From the greek word ἀπολογία (apologia) meaning "a defense" + -ic suffix meaning "of the nature of".

Examples:

1. He was apologetic for his behavior at the meeting.
2. The word "apologetic" comes from the Greek word ἀπολογία (apologia) meaning "a defense".
3. She was apologetic for her mistake and apologized to her friend.
4. He gave an apologetic look and said sorry.
5. The apologetic tone in his voice was evident.