IN'GRESS, noun [Latin ingerssus, ingredior, supra.] 1. Entrance; as the ingress of air into the lungs. It is particularly applied to the entrance of the moon into the shadow of the earth in eclipses, the sun's entrance into a sign, etc. 2. Power of entrance; means of entering. All ingress was prohibited.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI