alertness

alertness

English

Etymology

Etymology tree
English alert
Proto-Germanic *-in-
Proto-Indo-European *-h₂
Proto-Indo-European *-éh₂
Proto-Indo-European *-yéti
Proto-Indo-European *-eh₂yéti
Proto-Indo-European *-h₂ti
Proto-Germanic *-ōną
Proto-Germanic *-inōną
Proto-Indo-European *-dyé-
Proto-Germanic *-atjaną
Proto-Indo-European *-tus
Proto-Germanic *-þuz
Proto-Germanic *-assuz
Proto-Germanic *-inassuz
Proto-West Germanic *-nassī
Old English -nes
Middle English -nesse
English -ness
English alertness

    From alert + -ness.

    Pronunciation

    • (US) IPA(key): /əˈlɝt.nəs/
    • Audio (Southern England):(file)

    Noun

    alertness (usually uncountable, plural alertnesses)

    1. The quality of being alert or on the alert.
      • 1989 September 12, Daniel Goleman, “Feeling Sleepy? An Urge to Nap Is Built In”, in The New York Times‎[1]:
        THE human body was meant to have a midafternoon nap, according to a new consensus among sleep researchers who are studying the biological rhythms of sleep and alertness.

    Translations

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