IPA: /θɔrn/
KK: /θɔrn/
A sharp, pointed part of a plant that can cause pain or injury.
Be careful of the thorn on that rose bush; it can hurt if you touch it.
The word 'thorn' originates from Old English 'þorn' (meaning thorn or prickle), which is related to the Proto-Germanic '*thurnō' (meaning thorn) and the Proto-Indo-European '*dher-' (meaning to hold or support). The word 'thorn' refers to a sharp, pointed structure on a plant, which can hold or support the plant's defense against herbivores.
Imagine a sharp point that 'holds' its ground — that's what a thorn does, protecting the plant.