D
| Root | Meaning in English | Origin language | Etymology (root origin) | English examples |
|---|---|---|---|---|
| dactyl- | finger, toe, digit | Greek | δάκτυλος (daktulos) | dactylology, pterodactyl |
| damn-, -demn- | to inflict loss upon | Latin | damnāre | condemn, damnation |
| de- | from, away from, removing, down | Latin | dē | deletion, dementia, descend |
| deb- | owe | Latin | debere, debitus | debit |
| deca-, dec-, deka-, dek- | ten | Greek | δέκα deka, ten | decagram, decahedron |
| decim- | tenth part | Latin | decimus, tenth; from decem, ten | decimal, decimate |
| delt- | Greek | δέλτα (delta) | deltoid | |
| dem- | people | Greek | δῆμος (dēmos) | demagogue, democracy |
| den- | ten each | Latin | deni | denarius, denary |
| dendr- | resembling a tree | Greek | δένδρον (dendron): akin to δρύς, drys, "tree" | dendrite, dendrochronology |
| dens- | thick | Latin | densus | condense, density |
| dent- | tooth | Latin | dens, dentis | dental, dentifrice, dentures |
| derm- | skin | Greek | δέρμα (derma) | dermis, epidermis, hypodermic |
| deuter- | second | Greek | δεύτερος (deuteros) | Deuteronomy, deuterostome |
| dexter- | right | Latin | dexter | dexterity, dextrose |
| dexi- | right | Greek | δεξιός, right | Dexiarchia |
| di- | two | Greek | δι- | dicot, diode, dipole |
| dia- | apart, through | Greek | διά (dia) | dialysis, diameter, diagram |
| dict- | say, speak | Latin | dicere, dictus | contradict, dictate, dictation, dictionary, edict, predict |
| digit- | finger | Latin | digitus | digital |
| dino- | terrible, fearfully great | Greek | δεινός (deinos) | dinosaur |
| dipl- | double; twofold | Greek | διπλός (diplos) | diploid, diplosis |
| doc-, doct- | teach | Latin | docere, doctus | docile, doctor, indoctrinate |
| dodec- | twelve | Greek | δώδεκα (dodeka) | dodecasyllabic |
| dogmat-, dox- | opinion, tenet | Greek | δόξα | dogmatic, orthodox |
| dom- | house | Latin | domus | dome |
| don- | give | Latin | donare | condone, donation |
| dorm- | sleep | Latin | dormire | dormant, dormitory |
| dors- | back | Latin | dorsum | dorsal |
| du- | two | Latin | duo | dual |
| dub- | doubtful | Latin | dubius | dubious |
| duc-, duct- | lead | Latin | dux, ducis | abduction, conductor, introduction, production, reduction, deduction |
| dulc- | sweet | Latin | dulcis | dulcet |
| dur- | hard | Latin | durus | durable, duration, duress, endure, obdurate |
| dy- | two | Greek | δύο (duo) | dyad |
| dyna- | power | Greek | δύναμαι (dunamai) | dynamism, dynasty, dynamite |
| dys- | badly, ill | Greek | δυσ- (dus-) | dysentery, dysplasia, dystrophy |
Read more about this topic: List Of Greek And Latin Roots In English