- annex (v.)
- late 14c., from O.Fr. annexer "to join" (13c.), from M.L. annexare, freq. of L. annecetere "to bind to," from ad- "to" + nectere "to tie, bind" (see nexus). Almost always meaning "to join in a subordinate capacity." Of nations or territories, c.1500. The noun sense of "supplementary building" is attested from 1861, from Fr. annexe.