English demonstrate

← Proto-Indo-European *men- (think) (root)

← Latin demonstro (borrowed)

→ English demo (clipping)

→ English demonstration (suffix)

→ English demonstrator (suffix)

→ English redemonstrate (prefix)

→ English demonstratory (suffix)

→ English demonstrateth (suffix)

→ English demonstratest (suffix)

→ English demonstratable (suffix)

→ English counterdemonstrate (prefix)