mind (n.)

"that which feels, wills, and thinks; the intellect," late 12c., mynd, from Old English gemynd "memory, remembrance; state of being remembered; thought, purpose; conscious mind, intellect, intention," Proto-Germanic *ga-mundiz (source also of Gothic muns "thought," munan "to think;" Old Norse minni "mind;" German Minne (archaic) "love," originally "memory, loving memory"), from suffixed form of PIE root *men- (1) "to think," with derivatives referring to qualities of mind or states of thought.

The meaning "mental faculty, the thinking process" is from c. 1300. The sense of "intention, purpose" is from c. 1300. From late 14c. as "frame of mind. mental disposition," also "way of thinking, opinion."

"Memory," one of the oldest senses, now is almost obsolete except in old expressions such as bear in mind (late 14c.), call to mind (early 15c.), keep in mind (late 15c.). The expression time out of mind "indefinite long period of time" is roughly from mid-14c. (tyme of whilk no mynd es), later, in English law, "before Richard I" (1189).

Mind's eye "mental view or vision, remembrance" is from early 15c. To pay no mind "disregard" is recorded by 1910, American English dialect. To make up (one's) mind "determine, come to a definite conclusion" is by 1784. To have a mind "be inclined or disposed" (to do something) is by 1540s; to have half a mind to "to have one's mind half made up to (do something)" is recorded from 1726. Out of (one's) mind "mad, insane" is from late 14c.; out of mind "forgotten" is from c. 1300; phrase time out of mind "time beyond people's memory" is attested from early 15c. 

mid-14c., "to remember, call to mind, take care to remember," also "to remind oneself," from mind (n.). The Old English verb was myngian, myndgian, from West Germanic *munigon "to remind." Meaning "perceive, notice" is from late 15c.; that of "to give heed to, pay attention to" is from 1550s; that of "be careful about" is from 1737. Sense of "object to, dislike" is from c. 1600. Meaning "to take care of, look after" is from 1690s. Related: Minded; minding.

Negative use "(not) to care for, to trouble oneself with" is attested from c. 1600; never mind "don't let it trouble you" is by 1778; the meiotic expression don't mind if I do is attested from 1847.