Compounding
verb
To form (a resulting mixture) by combining different elements, ingredients, or parts.
“to compound a medicine”
To assemble (ingredients) into a whole; to combine, mix, or unite.
To modify or change by combination with some other thing or part; to mingle with something else.
Synonyms: settle, augment, increase, agree, form, make up, assemble, blend
noun
An accumulation of compound interest.
“the number of compoundings per year”