1909, formed in Eng. from Gk. geras "old age" (from PIE base *gere- "to grow old;" cf. Skt. jarati "makes frail, causes to age") + iatrikos "of a physician," from iatros, related to iasthai "heal, treat," of uncertain origin. Geriatrics was coined 1909 by Ignatz L. Nascher (1863-1944) in "New York Medical Journal" on the model of pediatrics. The correct formation would be gerontiatrics.