Where does “alternating caps” come from?

alternating caps (English) comes from English alternating, from English alternate, from Latin alternātus, from Latin alternō, from Latin alternus, from Latin alter, from Proto-Indo-European h₂élteros, from Proto-Indo-European h₂el- — to grow, nourish; beyond, other; to wander, roam.

alternating caps (English): A form of capitalization where capital letters are placed throughout the word(s), formerly used in the script kiddie subculture and now to convey mockery through text messages or in online discussions

Definitions

  1. A form of capitalization where capital letters are placed throughout the word(s), formerly used in the script kiddie subculture and now to convey mockery through text messages or in online discussions

Ancestry of “alternating caps”, step by step

alternating caps traces back through two separate lines of ancestry.

via English alternating

StepLanguageWordMeaning
1Englishalternatingpresent participle of alternate; That alternates;...
2EnglishalternateHappening by turns; one following the other in...
3Latinalternātusalternated, vacillated
4Latinalternōto do one thing and then another, do by turns, interchange, alternate
5Latinalternusalternate (one after the other), successive
6Latinalterthe other, the second; the one...the other
7Proto-Indo-Europeanh₂élterosother , second
8Proto-Indo-Europeanh₂el-to grow, nourish; beyond, other; to wander, roam

via English caps

StepLanguageWordMeaning
1Englishcapsplural of cap; API pl; Capital letters; capitals
2EnglishcapA close-fitting hat, either brimless or peaked; A...
3Middle Englishcappecap; hat; A bandage or other covering to protect...
4Old Englishcæppehat
5Proto-West Germanic*kappijā
Every word from Proto-Indo-European h₂el-