Griever
Part of speech: noun
Definition: One who grieves
Lamenter
Part of speech: noun
Definition: One who laments.
Griever as a noun is one who grieves while Lamenter as a noun is one who laments.
Part of speech: noun
Definition: One who grieves
Part of speech: noun
Definition: One who laments.
We hope you now know whether to use Griever or Lamenter in your sentence.