|Noah Webster's Dictionary|
1. (adv.) In twice the quantity; to twice the degree; as, doubly wise or good; to be doubly sensible of an obligation.
2. (adv.) Deceitfully.
Doubly (2 Occurrences)
Jude 1:12 These men--sunken rocks! --are those who share the pleasure of your love-feasts, unrestrained by fear while caring only for themselves; clouds without water, driven away by the winds; trees that cast their fruit, barren, doubly dead, uprooted; (WEY NAS)
Jeremiah 16:18 And first I will recompense their iniquity and their sin double; because they have profaned My land; they have filled Mine inheritance with the carcasses of their detestable things and their abominations. (See NAS RSV)