Modern creation, possibly of the sea or star of the sea
Lemarion is a modern American name likely created by combining the prefix 'Le-' with the name Marion. Marion itself is a French diminutive of Marie, which is derived from the Hebrew Maryam, often interpreted as 'bitter' or 'star of the sea'.
Less common today
Lemarion isn't in the latest US Top 1000. It last peaked at #7,645 in 2008.
US births per 5-year period, 1990βpresent (SSA data).