The noun vigor has the adjective form vigorous. The adverb form is vigorously.
Vigorously is an adverb.
The correct spelling of the adverb is vigorously, just as in your question.
Energetically is an adverb, yes.Some example sentences are:She energetically jumped on her parent's bed to wake them up.The children screamed energetically when the surprise was revealed.
No, the word 'feebly' is an adverb, modifying an verb as 'without vigor, in a faint, ineffective manner'.Example: He feebly apologized for his rudeness but he didn't sound sincere.The noun form is feebleness.
vigor means power
example of organic vigor
Honda Vigor was created in 1992.
Vigor Lamezia was created in 1919.
Vigor Shipyards was created in 1916.
Vigor S.A. was created in 1953.
David Vigor was born in 1939.
David Vigor died in 1998.