the full line being “Give us today our epiousion bread”
Today, most scholars reject the translation of epiousion as meaning daily. The word daily only has a weak connection to any proposed etymologies for epiousion. Moreover, all other instances of “daily” in the English New Testament translate hemera (ἡμέρα, “day”), which does not appear in this usage.[1][2] Because there are several other Greek words based on hemera that mean daily, no reason is apparent to use such an obscure word as epiousion.[4] The daily translation also makes the term redundant, with “this day” already making clear the bread is for the current day.[21]
i don’t think wikipedia mentions this but it has ‘pious’ in the middle
Yes, but it doesn’t make it clear that it is something you receive every day. If I say “give us our pizza today” it doesn’t imply that I have a daily pizza party (I don’t, just a silly example).
Why don’t you?
It depends. “our daily bread” may mean the ‘bread’ that one needs every day, not necessary the bread that one actually gets everyday.
So it makes sense from the standpoint of someone praying (aka begging) that TODAY they’ll get the nourishment they need every day, because they aren’t really sure if they really will.