One Detail Of Sikhism

Sikh men are surnamed "Singh" whereas Sikh women are surnamed "Kaur."

"Singh" means "lion" so does "kaur" mean "lioness"? See SM Stirling, The Sunrise Lands (New York, 2008), Chapter Eight, p.  187. If so, should the two words not have the same root but with an affix for feminine gender?

When learning about Sikhism, I was told or read that "kaur" means "princess." See here.

The Wiki article here tells us that "kaur" means "prince" but is applied to women as a sign of their equality.

Fictional Religions And Philosophies

In fictional works by Poul Anderson, we read about:

Cosmenosis
Gaeanity
the Cosmic religion
Jerusalem Catholicism
the Ythrian New Faith
Ishtarian religion
Veleda's myth
the Johannine Church

SM Stirling presents the Anglo-Indian religion of the Angrezi Raj, the debased cult of the Peacock Angel (see here and here), a Theosophical "Church Universal and Triumphant" and a Wicca that is more neo- than pagan (see combox here).

Robert Heinlein presents the Angels of the Lord, the Fosterite Church of the New Revelation (for both of these, see here) and a new Martian religion.

In at least two of these cases, Cosmenosis and Wicca, it is possible to get into discussing whether these are viable world-views. Do the Wiccan Gods literally exist in this alternative history of Stirling's? A "Son of God" is a divine agent. "The Sword of the Lady" would be also.