Mostly a paradigm/vocab dump until the diachronics are finalized. (Can we get the lovely [cols] tags they have on the Zeeb?)

Nouns

Dative and accusative merge as the oblique, with the dative forms dropping (thus neuters only have two cases, mȧsc/fem have three). Dual is dropped. Catalonian Greek has a stress accent derived from the location of the pitch accent, much like actual Modern Greek, with the added complication that word-final vowels drop if the accent was on the antepenult; this isn't so much of a problem for verbs, since most all of their endings are at least two morae, but it does create complications in the nouns, where most declensions now have stress-based subclasses.

First-declension feminines have the stressed endings (nom/gen/acc) -è/-ès/-è, -á/-ò/-ás and unstressed -e/-es/-e, -a/-o/-as. (The genitive plural falls in line with the other endings with regard to accent, because otherwise there's a stem alternation in one form in a lot of words). Until further notice (and/or twabs tells me I can't) this dialect derives from Ionic, so all first-declension feminines have an eta-ending, except for the short-alpha stems, which have no ending in the nom.sg. and restore -a in the plural by analogy.

'tent': e isquenè, tes isquenès, te isquenè; a isquená, to isquenò, tas isquenás
'bed': e críne, tes crínes, te críne; a crína, to críno, tas crínas.
'sea': e çálat, tes çálates, te çálate; a çálata, to çálato, tas çálatas.. (Maybe that should be tes çalátes, te çaláte? Stress is hard- edit, yes, because all word-final -e and -o have to come from long vowels, so they drag the stress to the penult; stem alternation gets analogied away though)

Second-declension masculines and neuters also have accent splits. Remember, there's no oblique case in neuters!

'brother': u acilpós, tu acilpú, to acilpó; e acilpö, to acilpò, tus acilpús
'person': u ántrubus, tu antróbu, to ántrubu; e ántrube, to antróbo, tus antróbus
'wing': tu tiró, tu tirú; ta tirá, to tirò
'book': tu bivríu, tu bivríu; ta bivría, to bivrío

Third-declension masculine/feminine: uhhhhh

'foot': pús/puçús/puçá; puçés/puçò/puçás
stem-accent goes here: -Ø/-us/-a or -Ø, -is/-o/-as apparently there are nouns that accent the ending in the gen/dat but the stem in the nom/acc??? EDIT: according to twabs this is An Rule for all monosyllables in the third declension

Third-declension neuters: where do I even find an ending-accent

'body': sòma/sòmadus; sòmad/somádo

CONTINUANDUM