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or pet·a·sus  (pĕt′ə-səs)
1. A wide-brimmed hat worn by ancient Greeks and Romans.
2. Greek Mythology The winged hat of Hermes.

[Greek; see petə- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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The genus name, Petasites, is derived from the Greek word "petasos", which is the felt hat worn by shepherds.
Cape Petasos, Plati Bay, the seashores, the local architecture, the vineyards are all distinct features of Myrina's landscape.
Greeks and Romans shared a word for the traveler's hat: the petasos or petasus.