From Inventing aviation
By some interpretations the "aerostat" is distinct from the dirigible:
But Montgolfier's invention did not constitute aerial navigation: the "aerostat," so admirably named from its birth, was passive in the midst of the atmosphere; it was to the airship of man's dreams what the buoy is to the ship, that is, a floating object, the toy of the fluid in which it floats.
A six-language lexicon from the 1910s translates aerostat (=aérostat) into German as Kugelballon, globe-balloon.
- Berget, 1909, Conquest of the Air, p. xxiii.
- D'Arman, 1914, Lexique aéronautique en six langues, p. iv.