Other Word Forms of Theory
Origin of Theory
From Late Latin theōria, from Ancient Greek θεωρία (theōria, “contemplation, speculation, a looking at, things looked at"), from θεωρέω (theōreō, “I look at, view, consider, examine"), from θεωρός (theōros, “spectator"), from θέα (thea, “a view") + ὁράω (horaō, “I see,look").
Late Latin theōria from Greek theōriā from theōros spectator probably theā a viewing -oros seeing (from horān to see)
From American Heritage Dictionary of the English Language, 5th Edition
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