EnglishEdit
EtymologyEdit
From the Latin nōnārius, from nōnus (“ninth”) + ārius (whence the English suffix ary).
AdjectiveEdit
nonary (not comparable)
 Of ninth rank or order.

1984 January 9, L. J. Walpole, “FourthRank Tensors of the ThirtyTwo Crystal Classes: Multiplication Tables”, Proceedings of the Royal Society of London, Series A, Mathematical and Physical Sciences, volume 391, number 1800, JSTOR 2397534, pages 149179:
 […] and the rhombic algebra is established as the direct sum of the nonary subalgebra of the U_{pq} and of the three unary subalgebras generated individually by V, W and X, […]
