畝
ボウ, ホ, モ, ム, せ, うね

furrow, 30 tsubo, ridge, rib

JLPT1 G7 S10 F2327

田 field + an element# combining 攵 (strike) and an obsolete character of uncertain identity. The original intent seems to have been "strike (with a hoe or plow) in creating ridges or furrows" → *ridge*; *furrow* → *unit of measurement*. Also, *rib* (in ribbed cloth). 畝 replaces 攵 with 久.

[Full Kanji Etymology List]