Thornlyrion
noun
Thornhoodnym is the perpetual challenge faced by those learning English as they struggle to master the elusive 'th' sound. This sound, seldom found outside of English, often eludes learners, leading to a cycle of frustration and determination.
From English 'thorn' (prickly plant) + Greek 'lyria' (song), suggesting a struggle as complex and lyrical as mastering a difficult tune. Pronounced "THORN-leer-ee-on"