Smile etymology in English

Etymology Blog

English word smile comes from Proto-Indo-European *smey-, and later Proto-Germanic *smīlijaną (To smile.)

Dictionary entry	Language	Definition
*smey-	Proto-Indo-European (ine)	to laugh, be glad, wonder
*smīlijaną	Proto-Germanic (gem-pro)	To smile.
*smíla	Old Norse (non)
smila	Old Norse (non)
smile	Danish (dan)	To smile.
smilen	Middle English (1100-1500) (enm)
smile	English (en)	(ambitransitive) To have (a smile) on one's face.. (intransitive) To be propitious or favourable; to countenance.. (intransitive) To express amusement, pleasure, or love and kindness.. (intransitive) To look cheerful and joyous; to have an appearance suited to excite joy.. (transitive) To express by smiling. A facial expression comprised by flexing the muscles of both ends of one's mouth, [...]

Smile etymology