- a flat, wide-brimmed hat worn in ancient Greece
- the winged hat of Hermes (Mercury)
Origin of petasosClassical Latin petasus from Classical Greek petasos from petannynai, to spread out from Indo-European base an unverified form pet- from source fathom
- A wide-brimmed hat worn by ancient Greeks and Romans.
- Greek Mythology The winged hat of Hermes.
Origin of petasosGreek; see petə- in Indo-European roots.
- Alternative form of petasus.