What's the difference between "i kēlā me kēia lā" and "i nā lā a pau"? Both of these mean "every day", and I kind of vaguely get the semantic difference, but they seem to be used interchangeably in the example sentences. Clarification would be appreciated, thank you!
It is just a matter of semantics. i nā lā a pau means all days really, and by extension, every day.
kē.lā.…kē.ia demon. This and that, all, every, everything, here and there; miscellaneous, various (kēlā always precedes kēia: see Gram. 11.2.) ʻO kēlā aiʻole ʻo kēiā, this or that, alternating. I kēlā me kēia lā, daily. I kēlā me kēia pule, weekly. I kēlā me kēia makahiki, yearly. I kēlā a me kēia ʻelua makahiki, every other year. Kēlā mahina kēia mahina, every month, monthly. ʻA ʻohe pau pono o kāna pūlumi ʻana, o kēlā me kēia pau, she did not sweep thoroughly, just here and there and finished, just a lick and a promise. ʻO kēlā mea kēia mea e makemake ana i ka lio, e hele mai ʻoia, who ever wants a horse, let him come. Ua haʻi ʻia ka lono i kēlā mea a me kēia mea o lākou, the news was told to all of them.