Does English contain any "abbreviated" words as a core part of its corpus? [closed]

acronyms vocabulary abbreviations

One of the most used words in English -- OK. Go here for the story of its derivation as a bit of satire.

Related

"Right" and "Left" and "Top" and "Bottom"
Word for a set of small side tasks that must happen before the primary tasks can continue
"Listen to music" or "listen for music"
What is the name of a particular poetic foot, unstressed, stressed, stressed?
Is it better to list adjectives, with an "and"? [duplicate]
What dialect is "just from + Ving"? [closed]
What is the meaning of " bless their little pea-pickin' hearts but TMW has done it again"? [closed]
There is & There are [duplicate]
When referring to a specific person by title only within a specific office, should the title be capitalized?
Difference between the meanings of "textbook" and "technical book" [closed]
It is not ... but ... (correct structure)
What's difference between " I knew i loved you" and " i knew i love you"?