Etymology
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Maya 

of or pertaining to the large group of native people of the Yucatan, or to their ancient civilization, at its peak c. 250 C.E. to 9c., noted for its fully developed written script, mathematics (which included zero), and astronomy; 1822, from the native name. Related: Mayan (1831).

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Fahrenheit (adj.)
temperature scale, 1753, named for Gabriel Daniel Fahrenheit (1686-1736), Prussian physicist who proposed the scale in 1714. The "zero" in it is arbitrary, based on the lowest temperature observed by him during the winter of 1709 in Danzig. An abstract surname meaning literally "experience."
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