2. to relax; to reduce anxiety or agitation
The child finally calmsed down after the storm passed.
A criança finalmente acalmou-se depois que a tempestade passou.
3. to soothe; to become less intense or violent (of emotions, weather, etc.)
The waves began to calmarse as evening approached.
As ondas começaram a acalmar-se conforme a noite se aproximava.