alloying

/AH0 L OY1 IH0 NG/
verb
  1. 1

    To mix or combine; often used of metals.

  2. 2

    To reduce the purity of by mixing with a less valuable substance.

    โ€œto alloy gold with silver or copper, or silver with copperโ€

  3. 3

    To impair or debase by mixture.

    โ€œto alloy pleasure with misfortunesโ€

Source: https://en.wiktionary.org/wiki/alloy, https://en.wiktionary.org/wiki/alloying