peaking

To reach a highest degree or maximum.

“Historians argue about when the Roman Empire began to peak and ultimately decay.”

To rise or extend into a peak or point; to form, or appear as, a peak.

To raise the point of (a gaff) closer to perpendicular.

To become sick or wan.

To acquire sharpness of figure or features; hence, to look thin or sickly.

To pry; to peep slyly.

The act of something reaching a peak.

Peaky; sickly; pining