word forming element indicating "oneself," also "automatic," from Old English use of self (pron.) in compounds, such as selfbana "suicide," selflice "self-love, pride, vanity, egotism," selfwill "free will."
late Old English gewær "watchful, vigilant," from Proto-Germanic *ga-waraz (source also of Old Saxon giwar, Middle Dutch gheware, Old High German giwar, German gewahr), from *ga-, intensive prefix, + *waraz "wary, cautious," from PIE root *wer- (3) "perceive, watch out for."
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<a href="https://www.etymonline.com/word/self-aware">Etymology of self-aware by etymonline</a>
Harper, D. (n.d.). Etymology of self-aware. Online Etymology Dictionary. Retrieved $(datetime), from https://www.etymonline.com/word/self-aware