June is named for the Roman goddess Juno — patron of marriage, women, and Rome. The month was named for her, and the name was used directly. The root may be related to iuvenis, meaning "young."
June peaked in the U.S. at #39 in 1925. After a long quiet, it is returning fast — currently in the U.S. top 200. The character June Osborne in The Handmaid's Tale brought it back to literary attention.
June reduces to four — the number of warm rooted month.