Where does “overactive” come from?

Overactive comes from Middle English over- combined with English active, which derives from Latin activus, itself from Latin agere meaning "to do or drive," traced to Proto-Indo-European h₂eǵ- with the same sense.

overactive (English): Excessively active

Definitions

  1. Excessively active

Ancestry of “overactive”, step by step

overactive traces back through two separate lines of ancestry.

via English active

StepLanguageWordMeaning
1EnglishactiveHaving the power or quality of acting; causing...
2Middle Englishactyfactive, reactive
3Old Frenchactifactive
4Latināctīvusactive
5Ancient GreekἐνεργητικόςAble to act on; acting on; Active; In the active...
6Ancient Greekἐνεργέωto be in action or activity, to operate; to...
7Ancient Greekἐνεργόςat work, active
8Ancient Greekἐν-in, within; on
9Ancient Greekἐνin, on, at; among; in, at, or during the time of
10Ancient Greekδέρμαskin, hide
11Ancient Greekγλυφήcarving, carved work; hole cut
12Ancient Greek-ῐ́ᾱ{{l|en|-ia}}; "suffix forming abstract feminine...
13Proto-Indo-European-íh₂
14Proto-Indo-European-h₂Creates collective nouns, which refer to groups...

via English over

StepLanguageWordMeaning
1EnglishoverDiscontinued; ended or concluded; Thoroughly;...
2Middle Englishoverriverbank, seashore, brink
3Old Englishōferriverbank, seashore, brink, edge, margin, border
4Proto-West Germanicobarover, above
5Proto-Germanicuberover; over, above
6Proto-Indo-Europeanupérabove; over
7Proto-Indo-Europeanupóunder, below
8Proto-Indo-Europeanh₃ewp-

Words derived from “overactive

Every word from Proto-Indo-European -h₂
overactive — Etymology, Origin & Word History | Etymology Explorer