イ, かこ.む, かこ.う, かこ.い

enclose, surround, encircle, preserve, store, keep

JLPT0 G13 S0 F5000

As per 韋# (go around) + circular enclosure → surrounding/encircling enclosure → *surround/encircle*; *enclose* → *besiege* (← besiege a town or citadel by surrounding it).

[Full Kanji Etymology List]