Glad that this breakdown is helpful. Also, words are cool and the English language is a thief of all other languages. Both Occult and Occlusion have the same basic root in Latin and have a very similar but distinct meaning and I find that pretty interesting.
Occlusion is from the mid 17th century: from Latin occlus- ‘shut/close/stop up,’ from the verb occludere. But in this case it means to cover up.
And occult’s usage as a verb is from the late 15th century from Latin occultare ‘secrete’, frequentative of occulere ‘conceal’, based on celare ‘to hide’; the adjective and noun from occult- ‘covered over’, from the verb occulere. And since that also means “hidden” it’s odd we don’t also call it occult, but the nuance is that occult in modern use is more about secret knowledge than actual concealment.
Anyway, none of this is to do with Mocha but enjoy that nonsense for today.