self-activity

self-activity

English

Etymology

Etymology tree
Proto-Indo-European *swé?
Proto-Indo-European *selbʰ-der.
Proto-Germanic *selbaz
Old English self
Old English self-
Middle English self-
English self-
Proto-Indo-European *h₂eǵ-
Proto-Indo-European *-eti
Proto-Indo-European *h₂éǵeti
Proto-Italic *agō
Latin agō
Proto-Indo-European *-wós
Proto-Indo-European *-iHwósder.
Latin -īvus
▲
Ancient Greek ἐνεργητῐκός (energētĭkós)sl.
Latin āctīvus
Proto-Indo-European *-teh₂
Proto-Indo-European *-ts
Proto-Indo-European *-teh₂ts
Proto-Italic *-tāts
Latin -tās
Latin āctīvitāsder.
Middle French activitébor.
English activity
English self-activity

    From self- + activity.

    Noun

    self-activity (uncountable)

    1. Self-motion or the power of moving one's self or itself without foreign or external aid.
      • 1692, Robert Boyle, A Confutation of Atheism from the Structure and Origin of Human Bodies:
        If it can intrinsically stir itself […] it must have a principle of self-activity which is life and sense.

    References

    • Ogilvie, John. The Imperial Dictionary of the English Language: A Complete Encyclopedic Lexicon, Literary, Scientific, and Technological. Blackie & Son. (1884).
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