One important information is that this word, "ordinateur", was actually crafted by IBM France, which wanted a word that was uniquely French.
They asked a couple of French linguists and the result was "ordinateur", which beat the older "calculateur".
Also interesting is that "ordinateur" was chosen because of its linguistic proximity to "ordination", which is the ceremony of ordaining a priest. IBM wanted the name to inspire reverence for their machines.
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko