It should normally be "bis" and "ter". The Latin for "once, twice, thrice, four ...

schoen on Oct 13, 2021 | parent | context | favorite | on: SHA-1 'fully and practically broken' by new collis...

It should normally be "bis" and "ter".

The Latin for "once, twice, thrice, four times, five times" is "semel, bis, ter, quater, quinquies". ("Bis" and "ter" are the only really short ones.)

It's moderately common in European standards and bureaucracy to use "bis" and "ter" for "version/revision 2" and "version/revision 3", respectively. For example https://en.wikipedia.org/wiki/List_of_ITU-T_V-series_recomme...

lvh on Oct 13, 2021 [–]

Huh, good point; I wonder if my mind mixed up the org chem with the numbers (likely) or if that's some kind of unique Belgian affectation.