Aselfaware
Perhaps someone can help me understand th difference between un- and a-. I understand un- refers to ‘not what was,’ while a- is ‘not’ with no temporal connotation. Because the order of consciousness is 1) not aware, 2) aware and then 3)self aware, why is un- even used…unless someone loses their awareness (e.g. brain damage).
un-
prefix of reversal, deprivation, or removal (as in unhand, undo, unbutton), Old English on-, un-, from Proto-Germanic *andi- (source also of Old Saxon ant-, Old Norse and-, Dutch ont-, Old High German ant-, German ent-, Gothic and- "against"), from PIE *anti "facing opposite, near, in front of, before, against" (from PIE root *ant- "front, forehead," with derivatives meaning "in front of, before").
a-
prefix meaning "not, without," from Greek a-, an- "not" (the "alpha privative"), from PIE root *ne- "not" (source also of English un-).
In words from Greek, such as abysmal, adamant, amethyst; also partly nativized as a prefix of negation (asexual, amoral, agnostic). The ancient alpha privatum, denoting want or absence.
self-unawarealso. Please post as an answer, so that I can accept. – Stewart Jan 03 '15 at 12:09self-unawareas an answer? This question just got another downvote today, without explanation, and all the other answers here have been downvoted. Not sure I feel very welcome at EL&U anymore. – Stewart Mar 25 '15 at 10:46