answersingenesis.org

Noah
Gender:  Masculine
Origin:  English, Biblical
Pronunciation:  NO-ə (English)

Meaning & History
Taken from the Hebrew name Noach meaning "rest, comfort".  In the Old Testament, God ordered Noah to build an Ark, a great ship that would ultimately save him and his family and two of every kind of animal from the Flood, God's judgment on the evil world.  After nearly one year since the start of the rains and the floodwaters of the Deep, God's mercy was shown to Noah and his family and they were commanded to fill the earth once more, always remembering God's promise, as seen in the rainbow He placed in the sky.

answersingenesis.org

Erin
Gender:  Feminine
Origin:  English, Irish
Pronunciation:  ER-in

Meaning & History
Anglicized form of Eireann, the genitive case of Gaelic Éire, meaning "Ireland".  Commonly, it is Anglicized as Erin and has been used as a given name since the middle of the 20th century.


Chael
Gender:  Masculine
Origin:  unknown
Pronunciation: possibly CAH-el

Meaning & History
Possible variation of Cáel, from the Gaellic caol meaning "slender".  In Irish legend Cáel was a warrior of Fianna and lover of Créd.


Arwen
Gender:  Feminine
Origin:  Literature
Pronunciation:  AHR-win

Meaning & History
From J.R.R. Tolkien's Lord of the Rings trilogy (1954).  Means "noble maiden" in Sindarin.  Arwen was the daughter of Lord Elrond of Rivendell, and lover of Aragorn, king of Gondor.