azogar

An old craft term meaning to coat glass with mercury to make a mirror — largely historical vocabulary today. Reflexively, azogarse describes the tremor caused by mercury-vapor poisoning, and in the Canary Islands azogado colloquially means very frightened or on edge.

• Antiguamente se azogaban los cristales a mano para hacer espejos. — In the old days, glass was coated with mercury by hand to make mirrors.
• El artesano se azogó tras años de trabajar sin protección. — The craftsman developed mercury tremors after years of working without protection.
• Estaba azogado, sin poder quedarse quieto un segundo. — He was a nervous wreck, unable to sit still for a second.

The mirror-making sense is now essentially historical (modern mirrors use aluminum or silver, not mercury) — a learner is far more likely to meet azogado in its Canary Islands colloquial sense of "nervous/frightened" than the literal verb.