Pubes
late 16th century: from Latin, ‘pubic hair, groin, genitals’.
wiktionary
From Latin pubes(“the hair which appears on the body at the age of puberty, the genitals”), from pubes, puber(“grown up, of mature age; of plants, downy, pubescent”); see puberty.
pubes
etymonline
pubes (n.)
1560s, "pubic hair, the pubescence of the genitals; the groin," from Latin pubes "pubescent, arrived at the age of puberty, of ripe years, grown up," also, as a noun, "a sign of puberty" (such as pubic hair), also "young men of the age of puberty" (see pubis). In 19c. also "pubic bone," and earlier "part of either hip bone that forms the front of the pelvis," from Latin os pubis, from pubes "genital area."
In modern slang, monosyllable, it is a familiar shortening of pubic hairs (see pubic).
