infantile
意味
- 《名詞の前にのみ用いて》幼時の
- 子供じみた;子供らしい
語源
英語の原文（Wiktionary）
Mid-15th century, "pertaining to infants," from Latin infantilis (“pertaining to an infant”), equivalent to infant + -ile, from īnfāns. Sense of "infant-like" is from 1772.
Mid-15th century, "pertaining to infants," from Latin infantilis (“pertaining to an infant”), equivalent to infant + -ile, from īnfāns. Sense of "infant-like" is from 1772.