(P.S. Gosh, cestina, if Eddie Izzard thinks Latin is silly, I dread to think what he'd make of Sumerian..."It has a ergative, a vocative, an ablative, a terminative, a locative, a cohortative, a vetitive, a precative, a comitative, an equative, an adverbiative, a locative-terminative and an enclitic copula...")
Good grief - to continue the thread drift for a moment (sorry MonInys, you have clearly triggered something
) - I can work out what some of them are for but vetitive, comitative and enclitic copula? The mind boggles. And does one use cohortative when addressing a group?
Cohortative: Let us do X - persuasive sense rather than ordering
Vetitive: I hope that we shall not do X/that X may not take place - hopeful, not imperative
Comitative: adds a sense of "with" to the phrase without needing a preposition
The enclitic copula is just grammarians being filthy, I think*.
Sumerian is a language system whose main aim in life seems to have been the avoidance of separate prepositions in a phrase
P.S. Incidentally, while we're being grammatical, I apologise for omitting an n from the indefinite article preceeding "ergative"!
*I lie - it's a way of attaching the sense of the verb "to be" to a noun to make an entire word, so you can say, "He is a scribe" all in one word ("dubsaram" - dub-sar = "write on tablets" = "scribe"; -am = the copula). More avoidance of unnecessary writing, you see.