IPA: /kəˈtrʌstiː/
KK: /kəˈtrʌsti/
A person who shares the responsibility of managing a trust with another trustee.
The cotrustees worked together to ensure the trust was administered properly.
Cotrustee → It is formed from "co-" (meaning together) and "trustee" (from Old French *trustier*, meaning to entrust). The word "cotrustee" refers to a person who shares the responsibility of trust with another, working together in the role of a trustee.
Think of 'together' ('co-') and 'entrusting' ('trustee') to remember that a cotrustee is someone who shares the responsibility of trust with another.