復
フク, また
restore, return to, revert, resume
JLPT2 G5 S12 F438
As per 复# as described in 腹 (double back) + 彳 movement → double back along the same course → *return* → *repeat*; *once more*. Also, *report* (← repeat that which has happened by reporting it).
[Full Kanji Etymology List]