Sickly-looking, peaky.

simple past tense and past participle of peak

plural of peak

Third-person singular simple present indicative form of peak

A point; the sharp end or top of anything that terminates in a point; as, the peak, or front, of a cap. / The highest value reached by some quantity in a time period.

(transitive, nautical) To raise the point of (a gaff) closer to perpendicular. / To reach a highest degree or maximum. / To rise or extend into a peak or point; to form, or appear as, a peak.

At the greatest extent; maximum. / (slang) Maximal, quintessential, archetypical; representing the culmination of its type. / (MLE) Bad / (MLE) Unlucky; unfortunate

(intransitive) To become sick or wan. / (intransitive) To acquire sharpness of figure or features; hence, to look thin or sickly. / (intransitive) To pry; to peep slyly.

plural of peaking

the time or place when something or someone is best, greatest, highest