raison

Inherited from Old French reson, raison, inherited from Latin ratiōnem. Compare the borrowed doublet ration.

• IPA^(key): /ʁɛ.zɔ̃/ ~ /ʁe.zɔ̃/

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raison f (plural raisons)

1. reason (cause)
2. reason (mental faculties)
3. (mathematics) common difference (of an arithmetic series)
4. (mathematics) common ratio (of a geometric series)

• “raison”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

From French raison (“reason”), compare Haitian Creole rezon.

raison

1. to be right

• Alcée Fortier, Louisiana Folktales

raison oblique singular, f (oblique plural raisons, nominative singular raison, nominative plural raisons)

1. alternative form of reson

raison

1. alternative form of raaison
   • 1867, GLOSSARY OF THE DIALECT OF FORTH AND BARGY:

     Dinna ishe mee a raison.

     Do not ask me the reason.

• Jacob Poole (d. 1827) (before 1828) William Barnes, editor, A Glossary, With some Pieces of Verse, of the old Dialect of the English Colony in the Baronies of Forth and Bargy, County of Wexford, Ireland, London: J. Russell Smith, published 1867, page 48