DATING

To note the time or place of writing or executing; to express in an instrument the time of its execution.

Example: "To date a letter, a bond, a deed, or a charter"

To note or fix the time of (an event); to give the date of.

To determine the age of something.

Example: "To date the building of the pyramids"

To take (someone) on a date, or a series of dates.

(by extension) to have a steady relationship with; to be romantically involved with.

(by extension) to have a steady relationship with each other; to be romantically involved with each other.

Example: "They met a couple of years ago, but have been dating for about five months."

To make or become old, especially in such a way as to fall out of fashion, become less appealing or attractive, etc.

Example: "The comedian dated himself by making quips about bands from the 1960s."

(with from) to have beginning; to begin; to be dated or reckoned.