English
grid method
grid + method, from the visual representation of the multiplication process resembling a grid or table.
Ancient Greek ὁδός ‘road’
Ancient Greek μέθοδος ‘following after’
Latin methodus
Middle French methode ‘method’
English method
Today it means
noun A visual approach to the multiplication of polynomials through the use of a grid-like structure to represent the multiplicand terms
Language periods are conventional ranges, not dates for this word.
Etymograph / grid method