English

Noun

avision ‎(plural avisions)

1. (obsolete) A vision.
   • c. 1390, Geoffrey Chaucer, "The Nun's Priest's Tale", The Canterbury Tales:

     Macrobeus, that writ the avisioun / In Affrike of the worhty Cipioun, / Affermeth dremes, and seith that they been / Warnynge of thynges, that men after seen.

   • 1485, Sir Thomas Malory, chapter Tercium, in Le Morte Darthur, book XV:

     And whanne this old man had sayd thus he came to one of tho knyghtes and sayd I haue lost alle that I haue sette in the / For thou hast rulyd the ageynste me as a warryour and vsed wrong werres with vayne glory […] / therfor thow shalt be confounded withoute thow yelde me my tresour / Alle this aduysyon sawe sir Launcelot at the Crosse

References

• avision in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913
• The Century Dictionary, The Century Co., New York, 1914

Old French

Noun

avision f ‎(oblique plural avisions, nominative singular avision, nominative plural avisions)

1. vision (religious or mystical experience of a supernatural appearance)