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NCIS: Los Angeles actress Daniela Ruah & fiancé David Olsen welcomed a baby boy on December 30thRiver Isaac is the first child for both.

WHAT IT MEANS:  River, obviously.

WHERE IT ORIGINATED: River is an English word that is derived from the Latin word “ripa”, meaning “riverbank.”

POTENTIAL NICKNAMES: There really isn’t one, although Rio is a cool alternative.

KNOW THIS: The name first appeared on U.S. popularity charts in 1994 due to its association with actor River Phoenix.

POP CULTURE CONNECTION: Both Keri Russell and Taylor Hanson have sons named River.

Find more baby names inspired by nature