late 14c., "connect with," from Old French annexer "to join, attach" (13c.), from Medieval Latin annexare, frequentative of Latin annecetere "to bind to," from ad "to" (see ad-) + nectere "to tie, bind" (from PIE root *ned- "to bind, tie"). Usually meaning "to join in a subordinate capacity," but that notion is not in the etymology. Of nations or territories, c. 1400. Related: Annexed; annexing.
1540s, "an adjunct, accessory," from French annexe "that which is joined" (13c.), from annexer "to join" (see annex (v.)). Meaning "supplementary building" is from 1861.
updated on September 22, 2022
Dictionary entries near annex