Meaning

• Somebody who is wealthy.

• A stream or river flowing into a larger river or into a lake; a tributary stream; a tributary.

Meaning

• Abundant; copious; plenteous.

• (by extension) Abounding in goods or riches; having a moderate level of material wealth.

  "They were affluent, but aspired to true wealth."

• Tributary.

• Flowing to; flowing abundantly.