despot.noun
a person who wields power oppressively; dictator; autocrat; a tyrant.-.example Karl Marx a ruler who uses power to subjugate those who probably would have supported him had he the peoples' best interest at heart
despotic.adjective
despotically.adverb
despotism.noun
a government or political system in which the ruler exercises absolute power; a state so ruled; rule by or as if by a despot; absolute power or authority; actions of a despot; tyranny

duly.adverb
in a proper manner (a duly appointed official); at the expected time

devout,-devouter, devoutest.adjectives
devoted to the fulfillment of religious obligations; sincere; earnest (devout wishes for their success)
devoutly.adverb
devoutness.noun

decadent.adjective
being in a state of decline or decay; marked by or providing unrestrained gratification; self indulgent
decadent.noun
a person in a condition or process of mental or moral decay
decadently.adverb

dissent, dissented, dissenting, dissents.intransitive verbs
to differ in opinion or feeling; disagree; to withhold assent or approval
dissent.noun
difference of opinion or feeling; disagreement; the refusal to conform to the authority or doctrine of an established church; nonconformity; dissenting opinion
dissentingly.adjective

dedicate, dedicated, dedicating, dedicates.transitive verbs
to set apart for a deity or for religious purposes; consecrate; to set apart for a special use: dedicated their money to scientific research; to commit (oneself) to a particular course of thought or action (dedicated ourselves to starting our own business); devote; to address or inscribe (a literary work, for example) to another as a mark of respect or affection; to open (a building, for example) to public use; to show to the public for the first time (dedicate a monument)
dedicator.noun
dedicated.adjective
wholly committed to a particular course of thought or action; devoted (a dedicated musician) 
dedicatedly.adverb
dedication.noun
the act of dedicating or the state of being dedicated; a note prefixed to a literary, artistic, or musical composition dedicating it to someone in token of affection or esteem; a rite or ceremony of dedicating; selfless devotion (served the public with dedication and integrity)
dedicative or dedicatory.adjective

dynamo.noun; plural.dynamos
a generator, especially one for producing direct current; an extremely energetic and forceful person (a vice president who was the real dynamo of the corporation)

directrix.noun; plural.directrixes or directrices
Mathematics-–-the fixed curve traversed by a generatrix (a geometric element that generates a geometric figure) in generating a conic (like a cone) section or a cylinder; the median line in the trajectory (the path of a projectile or other moving body through space) of fire of an artillery piece

devil's advocate.noun
one who argues against a cause or position, not as a committed opponent but simply for the sake of argument or to determine the validity of the cause or position

dynasty.noun,.plural.dynasties
a succession of rulers from the same family or line; a family or group that maintains power for several generations (a political dynasty controlling the state)
dynastic.adjective
dynastically.adverb

decency.noun,.plural.decencies
the state or quality of being decent; propriety; conformity to prevailing standards of propriety or modesty

decent.adjective
characterized by conformity to recognized standards of propriety or morality; free from indelicacy; modest; meeting accepted standards; adequate (a decent salary); morally upright; respectable; kind or obliging (very decent of them to lend you money)
decently.adverb
decentness.noun