コウ, ク, グ, もく, たくみ
craft, construction, katakana e radical (no. 48)
JLPT4 G2 S3 F299
A depiction of a long hollow tube used as a tool both to pierce and to connect → *work*; *construct* (← work/construct using connecting pipes/tubes) → *artisan*; *specialist*; *skillful*.
[Full Kanji Etymology List]