'theomorphic' originates from Greek, specifically the roots 'theos' and 'morphē', where 'theos' meant 'god' and 'morphē' meant 'form'.

'theomorphic' was formed in English by combining Greek roots (via Neo-Latin/technical coinage) and entered modern usage as the adjective 'theomorphic' in theological and scholarly contexts.

Initially it meant 'in the form of God' and, over time, it has retained that core meaning, now used mainly in theological or academic language to denote resemblance to God in form or nature.