One can point to the year 1943 as the beginning of Wiener’s final decisive period of accomplishment. This was the year the original small group of outstanding scientists-physicists, engineers, mathematicians, physiologists, began holding their first discussion groups for the purpose of advancing the new application of control principles on to the biological organism. For this new kind of study which pooled men from all branches of science, Wiener in 1947 gave the name CYBERNETICS (the greek word κυβερνήτης meaning steersman, or its stem meaning governor).
A Tribute to Norbert Wiener — Cybernetics of the Nervous System
The word cybernetics comes from Greek κυβερνητική (kybernētikḗ), meaning “governance”, i.e., all that are pertinent to κυβερνάω (kybernáō), the latter meaning “to steer, navigate or govern”, hence κυβέρνησις (kybérnēsis), meaning “government”, is the government while κυβερνήτης (kybernḗtēs) is the governor or “helmperson” of the “ship”.
Cybernetics — Wikipedia