|Origin:||compondre, from Latin componere, from com- ( COM-) + ponere 'to put'|
to make a difficult situation worse by adding more problems
compound a problem/difficulty etc
Helmut's problems were compounded by his lack of concentration.
2 British English
to make a bad action worse by doing more bad things
compound a crime/an offence etc
He compounded the offence by calling his opponents liars.
to be a mixture of things:
a smell compounded of dust and dead flowers
4 American EnglishBF
to pay interest that is calculated on both the sum of money and the interest:
Interest is compounded quarterly.