The internet abbreviations make sense,
For the rest, however, they are a kind of word games (they were nice though).
In brief, these what Mr. Google has found:
News ------> plural adj. that became a noun, from Greek origin: "neos".
Family ------> latin origin: "familia" from "famulus" (servant, slave).
Hello --------> from "hallo" (german) from "holla" (spanish), used to attract attention or to ask for stop.
OK ----- I once read a different story, where the chief of an army asked about his soldiers after a battle,
the answer was Zero Killed (0.K).