Is 'dirigible' English, or is it actually French?

'Dirigible' is a word borrowed from French 'dirigeable'. The word entered the English language some time around 1581.

dirigible [adjective] [1581]

Capable of being steered

See 'dirigible' on the Loan Words Map

See more loan words from French.

note: An airship dirigible balloon or dirigible is a type of aerostat aircraft that can navigate through the air flying under its own power. Aerostats use buoyancy from a lifting gas that is less dense than the surrounding air to achieve the lift needed to stay airborne.
Etymology: Latin 'dirigere'

See more loan words from 1500s.