Origin of ApusModL, the Old World swift (genus name) from Classical Greek apous, literally , footless: see apodal
Origin of ApusLatin apūs a kind of swallow from Greek apous without feet, sand martin a- without ; see a- 1. pous foot ; see ped- in Indo-European roots.
- plural form of APU
Named by Dutch explorers Pieter Dirkszoon Keyser and Frederick de Houtman between 1595 and 1597. From Latin apūs, from Ancient Greek ἄπους (apous, “sand martin”), from ἀ- (a-, “not”) + πούς (pous, “foot”) (the birds rarely show their feet).