| damnum | to inflict loss upon |  | verb | damn-, -demn- | damnum, damnāre | condemn, condemnation, damage, damnation, indemnify, indemnity |
| debere | owe |  | verb | deb- | debere, debitus | debit, debt |
| decimus | tenth part |  | noun | decim- | decimus, tenth; from decem, ten | decimal, decimate, decimation, decimator, decuman, dime |
| decorus | ornament |  | noun | decor- | decorus “fit, proper” and decorare “to decorate”, from decor “beauty, ornament” and decus “ornament” | decor, décor, decorament, decorate, decoration, decorative, decorator, decorous, decorum, redecorate |
| delere | erase |  | verb | del- | delere (from dē + linere) | delete, deletion, indelible |
| densus | thick |  | adj | dens- | densus | condensable, condensate, condensation, condensational, condensative, condense, dense, density, nondense, superdense |
| dens | tooth |  | noun | dent- | dens, dentis | bident, bidental, dandelion, dental, dentary, dentate, dentation, dentelle, denticity, denticle, denticulate, dentiferous, dentiform, dentifrice, dentigerous, dentil, dentin, dentinal, dentine, dentition, denture, indent, indentation, indenture, interdental, interdentil, intradental, multidentate, quadridentate, trident, tridentate |
| dexter | right |  | adj | dexter- | dexter | ambidexterity, ambidextrous, dexter, dexterity, dexterous, dextral, dextrality, dextrin, dextrorse, dextrose |
| digitus | finger |  | noun | digit- | digitus | bidigitate, digit, digital, digitate, digitiform, digitigrade, multidigit, multidigitate |
| diversum | different |  | adj | div-, diff- | diversum | different, divergence, diversity, divide, diffeomorphism |
| docere | teach |  | verb | doc-, doct- | docere, doctus | docile, doctor, doctrine, document, indoctrinate, indoctrination |
| dolere | pain |  | adj | dol- | dolere “to grieve”, also dolus “grief” and dolor “pain” | condolence, dol, doleful, dolorous, indolence |
| dominus | master |  | noun | domin- | dominus “master”; (from domus “house”) | beldam, beldame, belladonna, codomain, codominance, codominant, condominium, dam, dame, damsel, danger, demesne, demoiselle, domain, dominance, dominant, dominate, domination, dominative, dominator, dominatrix, domine, domineer, dominicide, dominion, dominium, domino, duenna, dungeon, madam, madame, mademoiselle, madonna, predominance, predominant, predominate, quasidominance, semidominance, subdominant, superdominant |
| domitare | tame |  | verb | domit- | domitare, frequentative of domare | daunt, domitable, indomitable |
| domus | house |  | noun | dom- | domus | dame, domal, dome, domestic, domesticate, domestication, domesticity, domestique, domicile, domiciliary, major-domo, semidome |
| dormire | sleep |  | verb | dorm- | dormire | dormant, dormitory |
| dorsum | back |  | noun | dors- | dorsum | disendorse, dorsal, dorsiferous, dorsiflexion, dorsiflexor, dorsigrade, dorsiventral, dorsum, dossier, endorse, endorsee, endorsement, indorse, indorsement, reredos |
| draco | dragon |  | noun | drac- | draco | Draco, draconian |
| dubius | doubtful |  | adj | dub- | dubius | doubt, dubiety, dubious |
| ducere | lead |  | verb | duc-, duct- | ducere, ductus | abduce, abduct, adduce, adduct, conduce, deduce, induce, introduce, produce, reduce, seduce, traduce |
| dulcis | sweet |  | adj | dulc- | dulcis | billet-doux, dolce, dolcetto, douce, doux, dulcet, dulcian, dulcify, dulcimer, edulcorant, edulcorate, subdulcid |
| duo | two |  | noun | du- | duo | deuce, doubt, dual, duality, duet, duo, duplex, duplicity, duumvirate, duumviri, nonduality |
| durus | hard |  | adj | dur- | durus, durare | dour, dura, durability, durable, durain, dural, duramen, durance, durancy, duration, durative, dure, duress, durity, durous, durum, endurable, endurance, endurant, endure, indurate, induration, nondurable, obduracy, obdurate, obduration, perdurable, perdurance, perdure, subdural |
| dēnī | ten each | | noun | den- | dēnī | denar, denarian, denarius, denary, denier, dinar, dinero, dinheiro |
| dē | down, away from, removing |  | preposition | de- | dē | decay, decide, declare, decline, decompose, dedicate, deduce, defend, deletion, delineate, delude, demarcate, dementia, depress, derogatory, desecrate, descend, destroy, detract |
| dīcere | say, speak, proclaim |  | verb | dic-, dict- | dīcere, dictus, dictare | benediction, condition, contradict, dictate, dictation, dictator, diction, dictionary, dictum, edict, indictment, interdiction, malediction, predict, prediction, valediction, verdict |
| dōnum | give |  | verb | don- | dōnum, donare | condonation, condone, donate, donation, donative, donator, donatory, donor, pardon, pardonable |
