peaky I. \ˈpēkē\adjective (-er/-est) Etymology:peak (II) + -y 1.: having a peak or peaks : marked by peaks < crossed the peaky ridge > 2.: pointed, sharp < a peaky face > II. adjective (-er/-est) Etymology:peaked (II) + -y : peaked, sickly < he was a small boy, nine at most, and peaky — Margery Allingham > III. variant of pecky