G1016 βοῦς (boûs)

KJV renderings: ox
Strong's definition: an ox (as grazing), i.e. an animal of that species ("beef")
Derivation: probably from the base of G1006 (βόσκω);

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