derisive

The word 'derisive' has a clear lineage from the Latin verb 'deridere', which is a compound of 'de-' (down, completely) and 'ridere' (to laugh). The literal sense was 'to laugh down at' someone, conveying scorn. This verb passed into English via the past participle stem 'deris-', which forms the core of the noun 'derision'. The adjective-forming suffix '-ive', of Latin origin, was then appended to create 'derisive', describing something that has the nature of or tends to mock. Thus, the modern meaning of expressing contemptuous ridicule directly evolves from the ancient act of laughing someone down.

Structure: deris (to mock) + ive (adjective suffix) 'deris' is derived from Latin 'deridere' meaning 'to laugh to scorn, to mock'. The '-ive' suffix is from Latin '-ivus', forming adjectives meaning 'tending to' or 'having the nature of'.