IPA: /rɪˈʃʊərɪŋli/
KK: /riˈʃʊrɪŋli/
In a way that makes someone feel less worried or more confident.
She spoke reassuringly to the frightened child.
Reassuringly → It is formed from "re-" (meaning again) and "assure" (from Old French *assurer*, meaning to make safe or secure) and the suffix "-ingly" (which forms an adverb). The word "reassuringly" means in a manner that makes someone feel safe or secure again.
Think of 'making safe again' — 're-' means again, and 'assure' means to make safe. This helps you remember that 'reassuringly' describes a way of making someone feel safe once more.