Shield
Derived from the Hebrew word for shield or protector. It is most famously recognized in the phrase Magen David, referring to the Star of David. While it sounds similar to the English name Megan, it has a distinct etymological root and spiritual significance.
Less common today
Magen isn't in the latest US Top 1000. It last peaked at #877 in 1990.
US births per 5-year period, 1990βpresent (SSA data).