埃
ほこり · hokori · JLPT N3 · noun
dust
🧹 埃 = 土 earth + 矣: earth light enough to drift; hokori also means pride
The 土 radical marks things made of soil, and dust is just earth fine enough to float. Hokori is also 誇り, pride, so one sound covers both: pride, like dust, gathers on what is left alone. In Chinese, 埃 also spells Egypt (埃及).