G3735 ὄρος (óros)

KJV renderings: hill, mount(-ain)
Strong's definition: perhaps akin to G142 (αἴρω); compare G3733 (ὄρνις)); a mountain (as lifting itself above the plain)
Derivation: probably from an obsolete (to rise or "rear";

From James Strong's public-domain dictionaries (G), JSON edition by OpenScriptures (CC-BY-SA). Every dotted-underline word in the text links here.