joi'i VUhU experimental cmavo

mekso string operator (n-ary): formal left-concatenation; X1+X, where Xi is a string/word/text

Generally noncommutative. The result is a single string written over the alphabet that is the union of each of the alphabets of the Xi's. 'ABC'+'DEF'+'GHI' = 'ABCDEFGHI'. See konkatena.

In notes:

arbitrary character string or irregular number
x1 (sequence) is the concatenation of sequences x2 and x3 (and x4, x5, ...)