Pediatrics
来自Big Physics
late 19th century: from paedo- ‘of children’ + Greek iatros ‘physician’ + -ics.
wiktionary
From Ancient Greek παῖς(paîs, “child”) -iatrics.
etymonline
pediatrics (n.)
"medical treatment of children; the branch of medicine dealing with the study of childhood and diseases of children," 1884; from pediatric; see -ics.