-phasia, -phasic, -phasis, -phasy +

(Greek: talk, speak, say)

acataphasia (ay KAYT uh fay" zee uh) (s) (noun), acataphasias (pl)
A physical disorder in which a lesion to the central nervous system leaves a person unable to correctly formulate a statement or to express oneself in an organized manner.
acoustic aphasia (s) (noun), acoustic aphasias (pl)
Impairment in the understanding of auditory language and communication, including the inability to write from dictation in the presence of normal hearing: Acoustic aphasia consists of sounds that are heard but which convey no meaning; however, spontaneous speech, reading, and writing are supposedly not affected.
agitophasia (s) (noun), agitophasias (pl)
1. Excessively fast speech when some words are not properly spoken or they are missing when a person is talking.
2. Etymology: from Latin agito, "to hurry" + Greek phasis, "speech".
agrammaphasia (s) (noun), agrammaphasias (pl)
Ungrammatical speech: Agrammaphasia is a form of aphasia, in which Susan, with this disability, forms words into a sentence without regard for any of the grammatical rules.

Agrammaphasias are usually caused by a cerebral disease that is characterized by an inability to construct a grammatical or intelligible sentence while still having the ability to speak single words.

allophasia
Incoherent speech.
allophasis
Incoherent, delirious speech.
amnesia, aphasia
amnesia (am NEE zhuh) (noun)
A loss of memory as a result of a shock, an injury, a psychological disturbance, or some kind of medical disorder: Because of the shock caused by a head injury, Victor's amnesia resulted in a total loss of memory regarding his past life.
aphasia (uh FAY zhuh) (noun)
One in a group of speech disorders in which there is a defect, or loss, of the power of expression and comprehension of spoken or written language or signs: Rhonda's brother suddenly had aphasia as a result of brain damage resulting from the automobile accident.

In addition to partial amnesia, the patient at the hospital suffered aphasia which impeded his recovery from the accident he suffered last year.

amnesic aphasia, nominal aphasia
An aphasia in which the principal deficit is difficulty in naming people and objects which they have seen, heard, or felt; due to lesions in various portions of the language area.
anomic aphasia (s) (noun), anomic aphasias (pl)
The inability to name objects or to recognize written or spoken names of objects: Because of his stroke, the patient suffered anomic aphasia and was unable to recognize the printed or spoken words for names of people, places, or things.
aphasia (s) (noun), aphasias (pl)
A defect or loss of expression by speech, writing, signs, or of comprehending spoken or written language, as a result of injury or disease of the brain centers: Dr. Thompson, the new doctor at the speech clinic, specialized in working with clients who were suffering from aphasia.

Both survivors of the industrial explosion suffered aphasia and were unable to communicate to others or even to understand what was being communicated to them.

aphasiac
Relating to or suffering from aphasia.
aphasic
Relating to, or suffering from aphasia (a defect or loss of the ability to speak or write, or the inability to understand spoken or written language).
aphasy
The loss of the power of speech, or of the appropriate use of words; with the vocal organs remaining intact, and the intelligence being preserved.

It is dependent on injury or disease of the brain.

apophasis
1. Mentioning something by saying it will not be mentioned.
2. The rhetorical device of alluding to something by denying that it will be mentioned, as in "I won't bring up the question of age now that you are seventy."
3. The denial of someone's intention to talk about a subject that is at the same time named or insinuated; such as, “I shall not mention Caesar's avarice, nor his cunning, nor his morality.”
apophatic (adjective)
Relating to the belief that God can be known to humans only in terms of what He is not; such as, "God is unknowable".
Cross references of word families related directly, or indirectly, to: "talk, speak, speech; words, language; tongue, etc.": cit-; clam-; dic-; fa-; -farious; glosso-; glotto-; lalo-; linguo-; locu-; logo-; loqu-; mythico-; -ology; ora-; -phemia; phon-; phras-; Quotes: Language,Part 1; Quotes: Language, Part 2; Quotes: Language, Part 3; serm-; tongue; voc-.