English

malunion

From mal- + union.

Formed from mal- + union

Proto-Italic *malos

Archaic Latin malos

Latin malus ‘bad’

Latin male ‘badly’

English mal-

Proto-Indo-European *h₁óynos ‘one’

…

Latin ūnus ‘one’

Late Latin ūniō ‘oneness’

Old French union

Middle English unyoun

English union

Today it means

noun Bad or incorrect union (of parts of the body).

Language periods are conventional ranges, not dates for this word.

Etymograph / malunion