所属
しょぞく · shozoku · JLPT N1 · noun
attached to
所 — door 戶 (left) + axe 斤 (right)
Originally a sound: an axe (斤) chopping wood near a door (戶), with 戶 also hinting at the pronunciation. Over time it was borrowed to mean 'place' or 'location,' and later became a grammatical particle nominalizing verbs ('that which…'). The concrete 'chopping' sense faded entirely.
属 — radical 尸 (corpse/body) + 禹/蜀 phonetic component
Originally written 屬, depicting a tail-like form attached to a body, suggesting connection or belonging. The 尸 radical relates to body/posture, while the lower component carried the sound. Over time the meaning extended from 'to join/attach' to 'belong to,' 'category,' and 'kind.'