eggshell

From Middle English eggeshell, ege schelle, egg-shel, egg shelle (also as Middle English eye schell, ey-schel, ey-schelle), partially continuing Old English ǣġsċill, ǣġsċyll (“eggshell”), equivalent to egg + shell. Cognate with Saterland Frisian Oaierskil (“eggshell”), Dutch eierschaal (“eggshell”), German Eierschale (“eggshell”), Danish æggeskal (“eggshell”), Swedish äggskal (“eggshell”).