推測
すいそく · suisoku · JLPT N1 · noun
guess; conjecture
🎲 推 push + 測 measure: push a measurement past what you actually know = guess
推 means push forward and 測 means measure or survey. A suisoku pushes a measurement past the facts you have, so it is a guess or conjecture.
推 — hand radical 扌 + 隹 (short-tailed bird)
A semantic-phonetic compound: the hand radical 扌 gives the meaning 'to push' or act with the hand, while 隹 supplies the sound (originally close to 'tui'). The core sense has stayed remarkably stable, expanding from physical pushing to figurative uses like 'recommend' or 'infer'.