膨
ボウ, ふく.らむ, ふく.れる
swell, get fat, thick
JLPT1 G7 S16 F1293
As per
彭
# (surge/swell) +
肉
flesh → swelling flesh → *swell*; *bulge*; *bloat*; *fill*. Compare
脹
.
[Full Kanji Etymology List]