Emily Dickinson Lexicon

MEL'LOW, v.t.

1. To ripen; to bring to maturity; to soften by ripeness or age. On foreign mountains may the sun refine / The grape's soft juice and mellow it to wine. Addison.
2. To soften; to pulverize. Earth is mellowed by frost.
3. To mature; to bring to perfection. This episode – mellowed into that reputation which time has given it. Dryden.