Well it appears that the standard way of saying the Paschal greeting in Klingon is { QIStoS Hu'ta' } and the response { Hu'ta'bej }, which has been seen on other sites as well. One linked site said { QISmaS DatIvjaj } which is grammatical, but actually means "may you enjoy Christmas". Notes, the "QI" is used to transliterate what we'd use "Kri" for. The general rule in transliteraring foreign words is to use the original form, subject to orthographical conventions. So, QIStos < Christos, and QISmaS < Christmas. Hu' is the verb to get up, rise, and an accomplished act can take the generic -pu' suffix, or -ta' which indicates something accomplished purposefully. The response also uses Hu'ta' but adds the -bej suffix to indicate that yes, He has definitely risen. Klingon is an aggutinative language. There was a Greek man, Nick Nicholas (
http://www.opoudjis.net/nick-kl.html ) who translated much of the Bible and some Shakespeare into Klingon. The language bears similarities to some Native American languages, and its author, Marc Okrand, did his dissertation on one such language in California (whose locative was also used in Klingon). It was of course initially commissioned for Star Trek, but when Okrand's dictionary and explanation of the language was published, the language took off on its own and resulted in the KLI (Klingon Language Institute, tlhingan Hol yejHaD) that just had its 33rd annual big convention, which is really more about linguistics, translations, and everyday use of the language (I've been going to them since 2003). And an additional note, the spelling/alphabet may seem odd; there are actually two in common use, pIqaD is one character per sound, and the Latin notation is most common, where all letters are lowercase except to indicate a letter whose pronunciation is different from what a reader would expect. Thus, 'a, 'e, 'o 'u are pronounced in a usual "European" way, but 'I is the sound in "it" not in "machine". The lowercase q is like a k but further back in the mouth, whereas the capital Q is like q + Kh merged, or like a Kr with an almost French accent.