Oftentimes

[Couch Potatoe]

A stupid and [redundant] [American English] word. You could have said sometimes, or often but instead you have to [bastardise] the two.

[Marquetta]

Frequently; many times.

[Zipporah Schumaker]

on many occasions:

[Renato]

many times at short intervals

[Vihan Dobiriyal]

From the composition of this word it is reasonable to believe, that oft was once an adjective, of which often was the plural; which seems retained in the phrase thine often infirmities. Frequently; many times; often.

[LindaArrit]

Oftentimes is an adverb that means frequently or many times; it denotes something happening or done on many occasions or in many instances.