annex
v.
late 14c., "to connect with," from Old French annexer "to join" (13c.), from Medieval Latin annexare, frequentative of Latin annecetere "to bind to," from ad- "to" (see ad-) + nectere "to tie, bind" (see nexus). Almost always meaning "to join in a subordinate capacity." Of nations or territories, c.1400. Related: Annexed; annexing.
n.
1540s, "an adjunct, accessory," from French annexe, from annexer (see annex, v.). Meaning "supplementary building" is from 1861.
〔李〕[an-（ad-）=to 到；nex=to bind 绑 ⇒“to bind one thing to another 将一物绑到另一物上”→] v. join to a larger thing 附加，并吞
〔李〕[an-(ad-);-nexv.] v.附加； 合并； 并吞 n.附加物； 附件 ←nect,nex (L nectere,nexum)=to bind 束，绑
〔蒋〕[an-表示to，nex结;’连结在一起”，’结合起来”] 合并，并吞，兼并(领土等)，附加