transubstantiate

/T R AE0 N S AH0 B S T AE1 N SH IY0 EY0 T/
verb
  1. 1

    To change one substance into another; to transmute.

  2. 2

    To change the bread and wine of the Eucharist into the body and blood of Jesus.

Source: https://en.wiktionary.org/wiki/transubstantiate