Emily Dickinson Lexicon

SING'LY, adv.

1. Individually; particularly; as, to make men singly and personally good. – Tillotson.
2. Only; by himself. Look thee, 'tis so, thou singly honest man. – Shak.
3. Without partners, companions or associates; as, to attack another singly. At ombre singly to decide their doom. Dryden.
4. Honestly; sincerely.