intransitive. To give thanks. Obsolete except as absol. of 3.

to give thanks (†thank,†to do thank(s), to express gratitude; spec. = ‘to give thanks to God’; now esp. of saying grace at a meal. archaic.

transitive. spec. To give (thanks) in return, esp. for a deed or service done, or to a person.

transitive. To utter, speak out loud (an utterance or discourse of a particular kind), e.g. to deliver (a message, a speech, a sermon), to relate…

To render, return (thanks, etc.). Obsolete.

to return thanks: to render thanks in return for a benefit or favour. Now chiefly used of the formal or public expression of thanks, or of grace at a…