I've been meaning to do this for a while: look up the definition for all these H-words that sound so similar.
when in lower-case: "airtight, isolated, not affected by outside influences" (dictionary.com)
when in upper case: "of, relating to, or characteristic of occult science, especially alchemy." OR relating to Hermes Trismegistus or his writings. (dictionary.com)
a syncretism of Kabbalah within Hermeticism (wikipedia). (Totally random, but I saw it on the Wikipedia disambiguation page and couldn't resist including it here. Oh my god, does it ever sound interesting).
"the theory and methodology of text interpretation" (wikipedia). I heard this word thrown around a lot in Bible College. I may even taken a class in Biblical Hermenutics without even stopping to ask myself what Hermeneutics even meant. Now we know.