1. With strength or vigour: with agitation.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• nervusly,
• nerviously,
• nerveously,
• nearvously,
• pervously,
• nervoulsy,
• nerviosly,
• nervousa,
• nervoused,
• nevously,
• nervesly,
• gnerously,
• nervouss,
• serviously,
• nervisly,
• nervousely,
• nerviusley,
• nervousity,
• nervouse,
• nervosuly

• nervous,
• nervus,
• nervousness,
• nerves.

The adjective form of the word "nervously" is "nervous".

The plural form of the word "nervously" is still "nervously" as it is an adverb, and adverbs usually do not have plural forms.

The singular form of "nervously" is "nervous"