List of Greek and Latin roots in English 15
J
Root Meaning in English Origin language Etymology (root origin) English examples
jac- lie Latin jacēre "to be thrown" adjacent
jac-, -ject- cast, throw Latin iacere, iectus ejaculate, eject, reject, interject, trajectory
janu- door Latin janua janitor
joc- joke Latin jocus jocularity
judic- judge Latin iudex, iudicis adjudicate, judicial, judiciary
jug- yoke Latin jugare, jugum conjugal, subjugate
jung-, junct- join Latin jungere, junctus conjunction, juncture
junior- younger Latin junior juniority
jus-, jur- law, justice Latin ius, iuris jury, justice
juv-, jut- help Latin juvare, jutus adjutant
juven- young, youth Latin juvenis juvenile, rejuvenate
juxta- beside, near Latin juxta juxtaposition
K
Root Meaning in English Origin language Etymology (root origin) English examples
kil(o)- thousand Greek χίλιοι (chilioi) kilobyte, kilogram, kilometer
kine- movement, motion Greek κινέω (kineō) kinesthetic, kinetic, telekinesis
klept- steal Greek κλέπτης (kleptēs) kleptomania, kleptoplasty
kudo- glory Greek κῦδος (kudos) kudos
L
Root Meaning in English Origin language Etymology (root origin) English examples
lab-, laps- slide, slip Latin labi, lapsus elapse, relapse
labi- lip Latin labia, labiae bilabial, labial
labor- work Latin labor collaboration, elaboration
lacer- tear Latin lacer laceration
lacrim- cry, tears Latin lacrima lacrimal, lacrimous
lact- milk Latin lac, lactis, lactare lactate, lactation, lactose
lamin- layer, slice Latin lamina laminate, lamination
lamp- torch Greek λαμπάς (lampas) lamp
lapid- stone Latin lapis, lapidis lapidary
larg- large Latin largus enlargement
larv- ghost, mask Latin larva larva, larvae, larval
lat- broad, wide Latin latus latitude
later- side Latin latus, lateris bilateral