～部
～ぶ · ～bu · JLPT N2 · noun
part
🧩 ～ぶ sounds like bu-reau: a department or division, one part of a whole
部 joins 咅 (sound) with 阝, a short form of 邑 meaning town, so it first meant a district. As a suffix it now marks a part or division: 一部 (one part), 野球部 (baseball club), 営業部 (sales department).
部 — 阝(邑) right + 咅 phonetic
The right-side 阝 derives from 邑 (city/settlement), giving the meaning of a region, district, or administrative division. The left side 咅 supplies the sound. Originally referring to a settlement, the meaning broadened to 'part,' 'section,' or 'ministry.'