English

malform

From mal- + form.

Formed from mal- + form

Proto-Italic *malos

Archaic Latin malos

Latin malus ‘bad’

Latin male ‘badly’

English mal-

Latin fōrma ‘shape’

Old French forme ‘shape’

Middle English forme ‘shape’

English form

Today it means

verb To form badly or wrongly.

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