Null: Having no legal or binding force : invalid. TheEnglish borrowed null from the Anglo-French nul, meaning "not any." That word, in turn, traces to the Latin word nullus, fromne-, meaning "not," and ullus, meaning "any."
Intractable: Not easily handled, managed, or controlled. From Latin tractare (to handle), frequentative of trahere (draw).
Quidnunc: A person who seeks to know all the latest news or gossip : busybody
Dour: Sullen; severe; gloomy; stubborn. Probably from Latin durus (hard). Earliest documented use: 1425.
Omnipotent: Having virtually unlimited authority or influence. Ultimately derives from the Latin prefix omni-, meaning "all," and the word potens, meaning "potent." The omni- prefix has also given us similar words such as omniscient (meaning "all-knowing") and omnivorous (describing an animal that eats both plants and other animals). Although omnipotent is used in general contexts to mean "all-powerful" (as in "an omnipotent warlord"), its original applications in English referred specifically to the power held by an almighty God. The word has been used as an English adjective since the 14th century; since 1600 it has also been used as a noun referring to one who is omnipotent.