Honestly \Hon"est*ly\, adv.

1. Honorably; becomingly; decently. [Obs.]

--Chaucer.

2. In an honest manner; as, a contract honestly made; to live honestly; to speak honestly. --Shak.

To come honestly by.
   (a) To get honestly.
   (b) A circumlocution for to inherit; as, to come honestly by a feature, a mental trait, a peculiarity.

Source: Webster's Revised Unabridged Dictionary (1913)