English

Noun

empennage ‎(plural empennages)

1. The tail assembly of an aircraft.
2. The feathers of an arrow or the tail fins of a bomb or rocket used to stabilize the longitudinal axis of the projectile parallel to the flight path.

French

Etymology

empenner +‎ -age

Noun

empennage f ‎(plural empennages)

1. fletching
2. empennage