IPA: /ˈkæltrɒp/
KK: /ˈkæltrəp/
A type of spiked device used to impede the movement of vehicles or foot soldiers, often used in warfare or as a trap.
The soldiers scattered calthrops on the road to slow down the enemy's advance.
The word 'calthrop' originates from Middle English 'caltrup', which is derived from Old French 'caltrop', meaning a spiked device used to impede the movement of horses or vehicles. The term refers specifically to a type of weapon or trap designed to injure or hinder.
Imagine a spiked device that 'trips' or 'hinders' movement — that's what a calthrop does, as it comes from the idea of a trap.