torpedo
Pronunciation: /tɔːˈpiːdəʊ/
noun ( plural torpedoes)
verb ( torpedoes, torpedoing, torpedoed)

Origin:
early 16th century (in torpedo (sense 3 of the noun)): from Latin, literally 'stiffness, numbness', by extension 'electric ray' (which gives a shock causing numbness), from torpere 'be numb or sluggish'. torpedo (sense 1 of the noun) dates from the late 18th century and first described a timed explosive device for detonation under water

Spelling help
The plural of torpedo is made by adding -es: torpedoes.