IPA: /ˈtrʌstɪli/
KK: /ˈtrʌstɪli/
In a way that shows trust or confidence.
She spoke trustily, believing in his honesty.
Trustily → It is formed from "trust" (from Old Norse "traust", meaning confidence or reliance) and "-ily" (a suffix forming adverbs meaning in a manner of). The word "trustily" means in a manner that shows confidence or reliability.
Think of showing confidence or reliability when you act 'trustily' — it means you are doing something in a trustworthy manner.