Learn English – Is ‘Safari’ really an English word, and what are its origins

This is more of a side note, but when I first saw someone use the word 'finna', I though they had made a typo and meant to write 'gonna'!

F is next to G on the Qwerty keyboard.
I is next to O on the Qwerty keyboard.
N            N
N            N
A            A

Wikipedia says the Irish did it:

Crozier (1984) suggests that during the 19th century, when many Irish speakers switched to speaking English, they filled this gap with you ones, primarily because Irish has a singular second-person pronoun, tu, as well as a plural form, sibh. The following therefore is the most likely path from you ones to yinz: you ones [juː wʌnz] > you'uns [juːʌnz] >youns [juːnz] > yunz [jʌnz] > yinz [jɪ̈nz].

Their citation is:

Crozier, A. (1984). The Scotch-Irish influence on American English. American Speech 59: 310-331.

In this lecture starting at about 19:58, Barbara Johnstone, Professor of Rhetoric and Linguistics at Carnegie Mellon University, also suggest the "you ones" origin. (The first several minutes of that lecture give more background on the immigration patterns that shaped language in Pittsburgh.) h/t Paul Placeway for pointing out the video to me.

I grew up (and still live) in Pittsburgh and I remember yunz being more common 30-40 years ago, though yinz seems to be more common now.