If I understand your request properly, -dic- is not a prefix but a very popular word part used in words like abdicate but it also has a more common variant -dict-, used in words like diction, dictionaryand the list I've supplied below -dict-'s meaning.
-dic-, -dict- means "speech, speak, talk, say, tell, pronounce, declare, proclaim, word, point out".
[The emboldened words are college level words.]
abdicate benediction contradiction .
contradictory dedication
dictate (GRE) dictum
edict indicant indicator indictinterdict (GRE)
juridical jurisdiction maledictionpredicament predicate predict .
prediction prodigious? prodigy? (not sure about prodigious or prodigy but the word part -dic- may be in there)
valediction valedictorian valedictory(apodictic, condition, dictim, dictionary, dictograph, dight, diseuse, ditto, dixit, epidictic, fatidic, index, indicavit, indicia, indite, indiction, judge, preach, predicable,verdict
"Dic" comes from the word dico, meaning "I speak." Words like dictionary, dictation and edict have "dic" in them.
To say, to speak is the English equivalent of the root syllable 'dic-'. So the Latin derivative verb 'dicere' means 'to say'. The Latin derivative noun 'dictio' means 'an act of speaking'.
diction - style of speech sounds involved in communicating. A dictionary is therefore 'a book that helps you speak'
Yes, the Latin word "dic" does mean "to speak." It is the root of words like "dictate" and "dictionary."
Dicere is the Latin root word that means 'to speak'. The word in Latin is an infinitive. The first person singular form in the present indicative is 'dico', which means '[I] am speaking, do speak, speak'. That form finds an older version in 'deico', which is related to the Greek 'deiknymi'.
"Dic" comes from the word dico, meaning "I speak." Words like dictionary, dictation and edict have "dic" in them.
The root word 'dic' means 'speak' or 'say'.
Dic means to say or speak something. There are several different words that have this prefix or root word and some of these words include dictation and dictionary.
To say, to speak is the English equivalent of the root syllable 'dic-'. So the Latin derivative verb 'dicere' means 'to say'. The Latin derivative noun 'dictio' means 'an act of speaking'.
Dic
dic- judge
Dict or Dic which means "to speak."
dictate contradict unpredictable dictionary edict
diction - style of speech sounds involved in communicating. A dictionary is therefore 'a book that helps you speak'
what is a root word for dictus
To say is the English equivalent of the Latin root syllable 'dic-'. That syllable is the source for the Latin infinitive 'dicere', which means 'to say'. Both the Latin root and the Latin infinitive, by way of its older first person present indicative form 'deico', are related to the original Greek 'deiknymi'.
dictionary dictake contradict unpredictable edict dictate prediction dictator