Origin and history of connote

1530s, "a secondary signification, that which is included in the meaning of a word besides its primary denotation," from Medieval Latin connotationem (nominative connotatio), noun of action from past-participle stem of connotare "signify in addition to the main meaning," a term in logic, literally "to mark along with," from assimilated form of Latin com "with, together" (see con-) + notare "to mark, note, make a note," from nota "mark, sign, means of recognition" (see note (n.)).

Earlier it was used in Middle English medical texts for "a concommitant symptom"(Chauliac, early 15c.).

The meaning "that which constitutes the meaning of a word" (1829) originated with James Mill, father of John Stuart Mill, who also developed the use of it.

The use, which I shall make, of the term connotation, needs to be explained. There is a large class of words, which denote two things, both together ; but the one perfectly distinguishable from the other. Of these two things, also, it is observable, that such words express the one, primarily, as it were ; the other, in a way which may be called secondary. Thus, white, in the phrase white horse, denotes two things, the colour, and the horse ; but it denotes the colour primarily, the horse secondarily. We shall find it very convenient, to say, therefore, that it notes the primary, connotes the secondary signification. [James Mill, footnote in "Analysis of the Phenomena of the Human Mind," 1829]

c. 1300, "a song, music, melody; instrumental music; a bird-song; a musical note of a definite pitch," from Old French note and directly from Latin nota "letter, character, note," originally "a mark, sign, means of recognition," which traditionally has been connected to notus, past participle of noscere "to come to know," but de Vaan reports this is "impossible," and with no attractive alternative explanation, it is of unknown origin.

Meaning "notice, attention" is from early 14c.; that of "reputation, fame" is from late 14c. From late 14c. as "mark, sign, or token by which a thing may be known." From late 14c. as "a sign by which a musical tone is represented to the eye." Meaning "a brief written abstract of facts" is from 1540s; meaning "a short, informal written communication" is from 1590s. From 1550s as "a mark in the margin of a book calling attention to something in the text," hence "a statement subsidiary to the text adding or elucidating something." From 1680s as "a paper acknowledging a debts, etc." In perfumery, "a basic component of a fragrance which gives it its character," by 1905.