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He·li·os | \ ˈhē-lē-əs 
, -(ˌ)ōs \
, -(ˌ)ōs \Definition of Helios
: the god of the sun in Greek mythology — compare sol
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Merriam-Webster unabridgedWords at Play
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Time Traveler for Helios
The first known use of Helios was in 1829
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