Simple past tense and past participle of immaterialize.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "immaterialized" in a sentence
""Does this mean that the Eternal-Uncreate chose, from foreknowledge of what Jeremiah would be, the created Ego of His immaterialized servant in heaven ere he clothed his soul with the mortal integument of flesh in human birth -- schooling him above for the part he had to play here below as a prophet to dramatize in his life and teaching the will of the Unseen?"