添
テン, そ.える, そ.う, も.える, も.う, そえ, ぞい
annexed, accompany, marry, suit, meet, satisfy, attach, append, garnish, imitate
JLPT1 G7 S11 F1501
As per 忝# (attach) + 水 water → use a sticky fluid to *attach* one object to another → *append*; *add*; *accompany* (← add a layer). Also, *comply with*, *satisfy* and *marry* (← complete ← add to).
[Full Kanji Etymology List]