DictionaryRoot: ab-
Latin

ab-

away, off, from

Forms

  • ab-
  • abs- — Expanded Latin form, especially before t.
  • a- — Shortened in some Latin compounds.

Origin

Reconstructed Proto-Indo-European *apo, ‘away; off.’

Note

The Greek prefix apo- is a relative from the same older source, not a borrowing from Latin.

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noun

abduction

Reasoning that infers the best explanation from available evidence.

Etymology

Latin abductio means a leading away. Logic gave the word a specialized use for moving from observed facts to a possible explanation, rather than deriving a necessary conclusion.

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