J
| Root | Meaning in English | Origin language | Etymology (root origin) | English examples | 
|---|---|---|---|---|
| jac- | lie | Latin | jacēre "to be thrown" | adjacent | 
| jac- (originally IAC), -ject- | cast, throw | Latin | iacio, iacere, ieci, iectus – "to throw" (and cognates thereof) | eject, interject, ejaculate, trajectory | 
| janu- | door | Latin | janua | janitor | 
| joc- | joke | Latin | jocus | jocularity | 
| jug- | yoke | Latin | jugare, jugum | conjugal, subjugate | 
| jung-, junct- | join | Latin | jungere, junctus | conjunction, juncture | 
| junior- | younger | Latin | junior | juniority | 
| jus-, jur-, judic- (originally IVS) | law, justice | Latin | ius, iuris; iudex, iudicis | judge, jury, justice | 
| juv-, jut- | help | Latin | juvare, jutus | adjutant | 
| juven- | young, youth | Latin | juvenis | juvenile, rejuvenate | 
| juxta- | beside, near | Latin | juxta | juxtaposition | 
Read more about this topic: List Of Greek And Latin Roots In English