Noah Webster
Conscious
CONSCIOUS, adjective [Latin]
1. Possessing the faculty or power of knowing ones own thoughts or mental operations. Thus, man is a conscious being.
2. Knowing from memory, or without extraneous information; as, I am not conscious of the fact.
The damsel than to Tancred sent, who, conscious of the occasion, feared the event.
3. Knowing by conscience, or internal perception or persuasion; as, I am not conscious of having given any offense. Sometimes followed by to; as, I am not conscious to myself.
Aeneas only, conscious to the sign, presaged the event. So we say, conscious of innocence, or of ignorance, or of a crime.