Meaning

adjective (sometimes followed by `of') having or showing knowledge or understanding or realization or perception

adjective bearing in mind; attentive to

originInherited from Middle English aware, iwar, iware, ywar, from Old English ġewær (“aware”), from Proto-West Germanic *gawar, from Proto-Germanic *waraz (“aware, cautious”), from Proto-Indo-European *worós (“attentive”), from *wer- (“to heed; watch out”). Cognate with Dutch gewaar, German gewahr, Danish var, Swedish var, Icelandic varr.

Etymology from Wiktionary, CC BY-SA 3.0