substraction

From Lua error in Module:utilities at line 142: attempt to perform arithmetic on local 'h' (a nil value) (compare modern French soustraction), from Lua error in Module:utilities at line 142: attempt to perform arithmetic on local 'h' (a nil value), from Medieval Latin substractio, derived from Late Latin substractus. Ultimately from Latin subtraho (“to pull out from under; to remove, to subtract”).

The use by non-native speakers arises by analogy with words such as French soustraction and Spanish sustracción.

substraction (countable and uncountable, plural substractions)

1. (obsolete or non-native speakers' English) Subtraction.
   • 1624, Henry Wotton, The Elements of Architecture, […], London: […] Iohn Bill, →OCLC:

     The plasterer doth make his figures by addition, and the carver by substraction.

   • 1999, A. Quinquis, C. Ioana, H. Thomas, “Noise substraction for improving the localisation of an underwater mobile”, in Oceans '99: Riding the Crest into the 21st Century. IEEE Conference Proceedings:

     [in title]

• obscurantist, subtractions