Where does “post-quantum” come from?

post-quantum (English) comes from English quantum, from Latin quantum, from Latin quantus, from Proto-Italic *kʷijentos, from Proto-Indo-European *kʷíh₂onts.

post-quantum (English): Existing in the hypothetical time period after the development of powerful quantum computers

Definitions

  1. Existing in the hypothetical time period after the development of powerful quantum computers

Ancestry of “post-quantum”, step by step

StepLanguageWordMeaning
1EnglishquantumThe total amount of something; quantity; The...
2Latinquantumnominative neuter singular of quantus; accusative...
3Latinquantushow much, how many; how big
4Proto-Italic*kʷijentos
5Proto-Indo-European*kʷíh₂onts
Every word from Proto-Indo-European *kʷíh₂onts