the.com/course

The path you're already on, which is doing a lot of work when you say 'of course.'

means A path, direction, or sequence of action that something follows — a class you take, a route a ship sails, or the natural progression of events.

from From Latin cursus, 'a running, a race, a course,' from currere, 'to run.' The sense spread outward from literal running to any path things run along — a river's course, a ship's course, a course of study, a course of a meal served in sequence — all of them tracks that something, or someone, runs through.

golf course
Borrowed the racing sense, literally a run for play
of course
Means 'following the expected path,' hence obvious
main course
Meal sense appeared 14th century as sequence of dishes
cursor shares root
Both come from Latin currere, to run
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