transubstantiate
/ˌtransəbˈstanʃɪeɪt
/ /ˌtrɑːnsəbˈstanʃɪeɪt/ /ˌtransəbˈstansɪeɪt / /ˌtrɑːnsəbˈstansɪeɪt/verb [with object]
1 Christian Theology Convert (the substance of the Eucharistic elements) into the body and blood of Christ.
1.1 literary Change the form or substance of (something) into something different.
Origin
Late Middle English: from medieval Latin transubstantiat- 'changed in substance', from the verb transubstantiare, from Latin trans- 'across' + substantia 'substance'.