Etymology of antelope

The word antelope comes from the Old French antelop, from Medieval Latin ant(h)alopus (11c.), from Greek antholops (attested in Eusebius of Antioch, c.336 C.E.), a fabulous animal haunting the banks of the Euphrates, very savage, hard to catch and having long saw-like horns capable of cutting down trees.

In modern Greek:
a) antilopi: antelope [Gr: αντιλόπη]

OED    
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Etymology of gas

The word gas is simply a phonetic transcription of the Greek word chaos [Gr: χάος]. It was first used in the early 17th century by the chemist J.B. Van Helmont.
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In modern Greek:
a) haos: chaos [Gr: χάος].
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WKP
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