The Key to Scientific Names
Mod. L. brevipes, brevipedis short-footed < L. brevis short; pes, pedis foot < Gr. πους pous, ποδος podos foot.
(Apodidae; syn. Apus Ϯ Common Swift A. apus) L. brevis short; pes, pedis foot < Gr. πους pous, ποδος podos foot; "Temminck's new term Cypselus, taken from the κυψελος of the Greeks, is, in our opinion, far less apposite and precise than the compound, Brachypus, introduced by the German Ornithologists; and literally signifying Short-foot. ... Our well-known Develin differs principally from the only other European species of the genus in the dusky colour of the whole inferior region of the body. Why, then, not designate it by the terms Brachypus (or Brevipes) melanogaster, dark-bellied Short-Legs?" (S. Palmer 1836); "Brevipes "P" = S. Palmer, Analyst, vol. iv. no. xv. p. 101, April 1st, 1836: alternative name for Brachypus Meyer." (Mathews, 1927, Syst. Av. Austral., I, p. 405)..