List of Greek and Latin roots in English/U
# List of Greek and Latin roots in English/U

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* X
* Z

## U

| Root | Meaning in English | Origin language | Etymology (root origin) | English examples |
| - | - | - | - | - |
| uber- | fruitful, udder | Latin | ūber, uberare | exuberance, exuberant, exuberate, uberous, uberty |
| uligin- | in marshes | Latin | uligo, uliginis | uliginous |
| ul- | gums | Greek | οὖλον (oûlon) | ulorrhea |
| ul- | woolly | Greek | οὖλος (oûlos) | Ulotrichi |
| ultim- | farthest | Latin | ultimus | ultimate, ultimatum |
| ultra- | beyond | Latin | ultra | ultrasonic |
| umbilic- | navel | Latin | umbilicus | umbilical, umbilicate, umbilication |
| umbr- | shade, shadow | Latin | umbra | adumbral, adumbrant, adumbrate, adumbration, adumbrative, antumbra, inumbrate, obumbrant, obumbrate, obumbration, penumbra, penumbral, somber, sombrero, subumbellate, umbel, umbellate, umbelliferous, umbelliform, umbellulate, umbellule, umber, umbra, umbraculum, umbrage, umbrageous, umbral, umbrella, umbriferous, umbrose |
| un- | one | Latin | ūnus, unius | adunation, biunique, coadunate, coadunation, disunite, disunity, malunion, nonuniform, nonuniformity, nonunion, nonunique, nonunity, onion, reunification, reunion, reunite, triune, unanimous, unary, unate, unicorn, unific, unification, uniform, uniformity, unify, union, unique, unite, unity, universal, universe, university |
| unc- | hook | Latin | uncus | adunc, aduncity, aduncous, unciform, Uncinaria, uncinate, Uncinia |
| unci- | ounce, twelfth | Latin | uncia | inch, ounce, quincuncial, semiuncial, uncial |
| und- | wave | Latin | unda | abound, abundance, abundant, inundant, inundate, inundation, redound, redundancy, redundant, superabound, superabundance, superabundant, surround, undine, undulant, undulate, undulation, undulatory, undulatus, undulose |
| undecim- | eleventh | Latin | undecimus | undecimal |
| unden- | eleven each | Latin | ūndēni | undenary |
| ungu- | claw, hoof, nail | Latin | unguis, ungula | ungual, unguiferous, unguiform, ungular, ungulate, unguligrade |
| ur- | tail | Greek | οὐρά, οὐρᾶς (ourá, ourâs) | anthurium, Anura, brachyurous, colure, cynosure, Diplura, Protura, uroborus, urochord, uroid, uropod |
| ur- | urine | Greek | οὐρεῖν (oureîn), οὖρον, οὔρου (oûron, oúrou), οὔρησις (oúrēsis), οὐρητήρ (ourētḗr), οὐρήθρα (ourḗthra) | antidiuretic, cystinuria, diuresis, diuretic, dysuria, enuresis, homocystinuria, lithuresis, polyurea, polyuria, strangury, uraemia/uremia, urea, uremic, uresiesthesia, uresis, ureter, ureteroscopy, urethra, urology |
| uran- | heaven, sky | Greek | οὐρανός, οὐρανοῦ (ouranós, ouranoû), οὐρανόθεν (ouranóthen) | uraninite, uranium, uranography, uranology, uranometry, uranophobia, Uranus |
| urb- | city | Latin | urbs, urbis | conurbation, exurb, exurban, interurban, inurbane, inurbanity, nonurban, suburb, suburban, suburbanite, urban, urbane, urbanity |
| urg- | work | Greek | | |
| urg- | work | Latin | urgere | urgency, urgent |
| urs- | bear | Latin | ursus | Ursa Major, ursine, Ursus |
| ut-, us- | use | Latin | uti, usus | abuse, disuse, use, usual, utilitarian, utility |
| uv- | grape | Latin | uva | uvea |
| uxor- | wife | Latin | uxor | uxoricide |
