Rookie
Rookie Origin and Meaning
Comparatively modest in an age of Saints, Messiahs, and Chosens, Rookie has a sporty, energetic feel about it. Associated with being new to something, particularly in relation to the army, police, or a sports team, the word came into common usage in the late 19th century, perhaps inspired by the phrase "new recruit."
While this meaning could give the name a humble feel and celebrate the idea that people are always learning in life, it does bring with it the negative connotations of the "rookie mistake", suggestive of inexperience and poor judgement. To get around this, you could always consider it as a nickname for names such as Roscoe, Roderick Rockwell, or Frederick.
Given to 9 boys in 2023 — the first year it has ever featured in the US stats — Rookie remains a rare choice for now.