going on

Snooky was three-going-on-four, and looked something like an angel—only healthier and with grimier hands.

For example, we perceive the going-on of the Great Pyramid in its relations to the goings-on of the surrounding Egyptian events.

It comes back, how serious I was about the drawing, at going-on-five.

For the standpoint of three-years-old is quite different from that of fourteen-going-on-fifteen.

Maybe I am only going-on-eighteen, but I'm doing a man's work, and I'm doing it competently.