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impertinence

/ɪmˈpɝːtənəns/

Rudeness, irrelevance, or inappropriate boldness

From Latin im- (not) + Latin, through Old and Middle French pertinent (relevant).

noun
im-
Latin
AI-inferred
in-
Negative prefix meaning “not” or “ opposite of”
Middle French
AI-inferred
im-
Assimilated form of in- before a following p; marks negation
pertinent
Latin
AI-inferred
pertinēre
“To pertain, relate, or concern”; literally, “to reach through”
Latin
AI-inferred
pertinēns, pertinentem
Present participle meaning “pertaining” or “relevant”
Old French
AI-inferred
partenant
“Belonging to or relating to”
Middle French
Verified
impertinence
Noun formed from impertinent, meaning lack of relevance or proper connection

from French impertinence

+1 more source
Combined
Middle French impertinence
im- (“not”) combines with pertinent (“relevant, belonging to the matter”) to produce “not pertinent,” later extended to rude or presumptuous behavior.
English
Verified
impertinence
Borrowed around 1600, first meaning “incivility”; “irrelevance” appears in the 1620s

from French impertinence

+1 more source
Modern English
impertinence

Around 1600, English borrowed impertinence from French as a tidy label for incivility—but its pieces originally described something much less personal: whether a remark belonged to the matter at hand. Pertinent traces to Latin pertinēre, “to pertain” or “reach through,” so an impertinent comment was, in the first logical sense, one that failed to connect with the subject. Then the word wandered from bad argument to bad manners: by the 1620s, “irrelevance” was established, while the social sense suggested someone barging into a conversation where they had no business being. The prefix im- is the same negative force seen in improper and impolite, though it changes shape before p, like a linguistic chameleon. Remember the word as a conversational trespass: an impertinent remark is not merely wrong—it has pushed through the doorway of relevance and started talking when nobody invited it.

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