yeu- / Indo-European roots
Examples of words with the root yeu-: galloglass, junior, Junker, Juno, juvenile, rejuvenate, young, younker, youth.
Vital force, youthful vigor.Oldest form *h2yeu-; variant of aiw-. Suffixed zero-grade form *yuwen- (< *yu-əen-), "possessing youthful vigor" young.
1. Further suffixed form *yuwn̥-ti-. youth from Old English geoguth, youth, from Germanic *jugunthi-, *jugunthō.
2. Further suffixed form *yuwn̥-ko-.
a. (i) young from Old English geong, young; (ii) junker from Old High German junc, young; (iii) younker from Middle Dutch jonc, young.
(i)-(iii) all from Germanic *jungaz, from *juwungaz;
b. gallowglass from Old Irish óac, from Celtic *yowanko-.
3. junior, June, Juno, juvenile; rejuvenate from Latin iuvenis, young.
[Pokorny 3. i̯eu- 510.]