Difference between Familiar and Overfamiliar

FAMILIAR vs OVERFAMILIAR: NOUN

A familiar friend; an intimate; a close companion; one long acquainted; one accustomed to another by free, unreserved converse.
A spirit (usually in animal form) that acts as an assistant to a witch or wizard
A person attached to the household of a high official (as a pope or bishop) who renders service in return for support
A person who is frequently in the company of another
A member of one's family or household.
A confidential officer employed in the service of the tribunal, especially in apprehending and imprisoning the accused.
An attendant demon or evil spirit.
An officer of the Tribunal of the Inquisition who arrested persons accused or suspected. See inquisition.
In the Roman Catholic Church, a member of the household of the pope or of a bishop, supported at his expense, and rendering him domestic, though not menial service. The familiar must live in the diocese of his superior.
A familiar spirit; a demon or evil spirit supposed to attend at call. See familiar spirit, under I.
A close friend or associate.
An attendant spirit, often taking animal form.
One who performs domestic service in the household of a high official.
A person who frequents a place.
An attendant spirit often in animal form.
A close friend.
An intimate; a companion.

Characterized by, or exhibiting, the manner of an intimate friend; not formal; unconstrained; easy; accessible.
Closely acquainted or intimate, as a friend or companion; well versed in, as any subject of study.
Of or pertaining to a family; domestic.
Well known; well understood; common; frequent.
Familial.
Taking undue liberties; presumptuous.
Natural and unstudied; informal.
Of established friendship; intimate.
Having fair knowledge; acquainted.
Often encountered or seen: : common.
Within normal everyday experience; common and ordinary; not strange
Well known or easily recognized
Domesticated; tame. Used of animals.
Having mutual interests or affections; of established friendship
(usually followed by `with') well informed about or knowing thoroughly
Of or pertaining to a family; familial.
Inappropriately intimate or friendly.
Intimate or friendly.
A demon or evil spirit supposed to attend at call.
Known to one.
Improperly acquainted; wrongly intimate.
Acquainted.

Synonyms Close, intimate, amicable, fraternal, near.
Well known from frequent observation, use, etc.; well understood.
Having an intimate knowledge; well knowing; well acquainted; well versed (in a subject of study): as, he is familiar with the works of Horace.
Characterized by ease or absence of stiffness or pedantry; unconstrained.
Having a friendly aspect or manner; exhibiting the manner of an intimate friend; affable; not formal or distant; especially, using undue familiarity; intrusive; forward.
Of established friendship
Not strange
Common and ordinary
Having, or springing from, intimate and friendly social relations; closely intimate: as, a familiar friend; familiar companionship; to be on familiar terms with one.
Pertaining to a family; domestic.

Fellow, Forward, Associate, Informed, Old, Casual, Everyday, Usual, Informal, Intimate, Common, Close, Overfamiliar, Acquainted, Conversant

Mirthless, Grand guignol, Overdetermined, Bathetic, Unaffecting, Overwrought, Overlong, Formulaic, Mawkish, Trite, Banal, Hackneyed, Melodramatic, Forward, Familiar

Fellow, Forward, Associate, Informed, Old, Casual, Everyday, Usual, Informal, Intimate, Common, Close, Overfamiliar, Acquainted, Conversant

Mirthless, Grand guignol, Overdetermined, Bathetic, Unaffecting, Overwrought, Overlong, Formulaic, Mawkish, Trite, Banal, Hackneyed, Melodramatic, Forward, Familiar

Both groups should be familiar with those rights.
Both parties should be familiar with state law.
We have to become familiar with those patterns.
All supervisors must be thoroughly familiar with firehazards.
To make the unfamiliar familiar and the familiar unfamiliar by embedding differences within similarities and similarities within differences is good poetry.
Those familiar with the legal system are more likely to sue, and physicians are very familiar with the system.
You may be familiar with his family though you might not be familiar with him individually.
Familiar names in the Collection tab of the Familiar System UI.
The name is not familiar to me, but of his deeds I am familiar.
It started to become familiar, almost too familiar.

Prison officials say he became "overfamiliar with a staff member' and that the case is under investigation.