Prefix
Alt. of Di-
Source: Webster's dictionaryThe word "diameter" is derived from Greek διάμετρος (diametros), "diameter of a circle", from δια- (dia-), "across, through" + μέτρον (metron), "measure". Source: Internet
Monophysitism is contrasted to dyophysitism (or dia-, dio-, or duophysitism) which maintains that Christ maintained two natures, one divine and one human, after the Incarnation. Source: Internet