a combining form meaning “god,” used in the formation of compound words: theocrat.
Also especially before a vowel, the-.
Origin of theo-
< Greek, combining form of theós
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
before a vowel the-
indicating God or godstheology
Word Origin for theo-
from Greek theos god
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012