customarily

adverb

In an expected or customary manner; for the most part: commonly, consistently, frequently, generally, habitually, naturally, normally, often, regularly, routinely, typically, usually. Idioms: as usual, per usual. See big/small/amount, usual/unusual.

The adverb has one meaning:

Meaning #1: by custom; according to common practice
  Derived from adjective: customary (meaning #2)