early 15c., "mathematical quantity obtained by multiplication," from Medieval Latin productum, in classical Latin "something produced," noun use of neuter past participle of producere "bring forth" (see produce (v.)). General sense of "anything produced" is attested in English from 1570s; political economy sense of "what is produced commercially for sale" is by 1890.

"pertaining to excretion," 1680s, from excrete + -ory.

also byproduct, "secondary or additional product;" 1849, from by + product.

abbreviation of gross national product, attested by 1953.

1955, of product packaging, from flip (v.) + top (n.1).

"to convert into a (mere) commercial product or activity," 1971, back-formation from commodification. Related: Commodified; commodifying.

1570s, "to purify, clarify, clear from dregs or impurities," from Latin defaecatus, past participle of defaecare "cleanse from dregs, purify," from the phrase de faece "from dregs" (see de- + feces). Figurative sense "purge of extraneous matter" is from 1620s. Excretory sense "void feces from the bowels" is by 1849 in medical writing, probably from French. Related: Defecated; defecating.

"something that is added" to a chemical solution or food product, 1945, from additive (adj.).

"single example of a manufactured product," by 1927, from one + off. Later given figurative extension.

"product of distillation, a fluid found in the receiver of a distilling apparatus," 1845; see distill + -ate (1).