A lot of these are puns/vague money sounding names in different languages.
Wero has got to be the worst of the bunch, though. An awkward combination of "we" and "euro" combined with "vero". At least the other pooq/wolo/snivum/rumio like names aren't trying to hard.
As terrible as these are, at least they aren't just random short English words.
Apparently it's the same as the Dutch payment system but in some languages that "iDEAL" had wrong associations.