Vocabulary Precision — Select the correctly spelled adjective meaning ‘‘childishly silly’’ (choose among Puerrile, Puerrille, Purrile, Puerile) with concise etymology and elimination.

Given data

• Sought word: meaning childishly silly; immature.
• Options: Puerrile, Puerrille, Purrile, Puerile

Approach
Standard spelling is puerile (from Latin ‘‘puer’’ meaning boy).

Option analysis
Puerrile/Puerrille/Purrile — letter doubling and vowel errors create nonstandard forms. ❌Puerile — correct. ✅

Memory tip
Think Latin root ‘‘puer’’ → puerile.

Final Answer
Puerile