Radical 刀
6 strokes
bow
(51a) + uphill 厄 (566b) = danger 危
[危机 (10) wēijī crisis]

“If you bow to someone you meet as you’re going uphill, you run the danger that they will bow too (and will then fall over on top of you). / I once had the full weight of the giant on top of me, because of bowing to him like that.”

Contrast this with “seal” (560a), and also with “snake” (275a).