Apologize

1. v. t. To defend.
2. v. i. To make an apology or defense.
3. v. i. To make an apology or excuse; to make acknowledgment of some fault or offense, with expression of regret for it, by way of amends; — with for; as, my correspondent apologized for not answering my letter.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.