on-

• a-, an-

From Middle English on-, from Old English on-, an-, from Proto-Germanic *an-, *ana- (“on-”), from Proto-Indo-European *ano-, *nō- (“on”). Cognate with Dutch aan-, German an-, Swedish an-.

on-

1. on, at, toward, upon.

   oncome, onset, onfall, onlay

• N.O., NO, No, No., no, no-, no.

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From Middle Dutch on-, from Old Dutch un-, from Proto-Germanic *un-, from Proto-Indo-European *n̥-.

on-

1. un-, in-

• Afrikaans: on-

From Middle Dutch on, from Old Dutch *āna, from Proto-Germanic *ēnu (“without”), from Proto-Indo-European *anew, *enew (“without”).

on-

1. on, without

• IPA^(key): /on/

on-

1. un-, in-

From Old Dutch un-, from Proto-Germanic *un-, from Proto-Indo-European *n̥-.

on-

1. un-, in-

• Dutch: on-
  • Afrikaans: on-
• Limburgish: ón-

• IPA^(key): /on/

From Proto-Germanic *ana (“on”)

• an-

on-

1. Forming verbs and adjectives from participles and nouns, with various senses of on, upon, to, there, thither.

   onhlinian "to lean on"

   ondōn "to don, put on clothes"

2. (inchoactive) in, into; prefix used to intensify an action or to denote origin or initiation

   onlīehtan "to enlighten"

   onstellan, onstiellan "to establish, institute, install, originate"

From unstressed form of and- (“and-”)

on-

1. denoting reverse action

   onbindan "to untie, unbind"

   onfealdan "to unfold"

2. off, away

   onberan "to carry off"