Dia meaning

dīə
A prefix meaning “through” or “across,” as in diameter, the length of a line going through a circle.
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Dia is defined as going through or across or between.

An example of dia used as a prefix is in the word "diagnosis," which means a thorough analysis of a disease.

prefix
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Apart, between.

Dialect, diacritical.

affix
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1
Through.

Diachronic.

prefix
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Through, throughout, across.

Diachronic, diagram.

affix
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(1) See Ethernet DIA.
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Across.

Diatropism.

prefix
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Origin of dia

  • ME < OFr < L < Gr dia, through, across < *disa, in two, apart < IE *dis- < base *dwo, two

    From Webster's New World College Dictionary, 5th Edition

  • Greek from dia through

    From American Heritage Dictionary of the English Language, 5th Edition