The story
From Koine Greek ἰσοψηφία (isopsēphía), from ἴσος (ísos, “equal”) and ψῆφος (psêphos, “pebble”). The early Greeks used pebbles arranged in patterns to learn arithmetic and geometry.
Etymology from Wiktionary, CC BY-SA 4.0.
isopsephy
Today it means: The practice of adding up the numerical values of the letters in a word to form a single number. Full definition →