IPA: //ˈswiːtˌbraɪər//
KK: /ˈswitˌbraɪər/
A type of rose plant with thorny stems, sweet-smelling leaves, pink flowers, and red fruit.
The sweetbrier in the garden attracted many bees with its fragrant flowers.
Sweetbrier is formed from "sweet" (from Old English *swete*, meaning pleasing to the taste or smell) and "brier" (from Old French *bruyère*, meaning a thorny plant). The word refers to a thorny plant that has a sweet fragrance or sweet-smelling flowers.
Think of a plant that is both 'pleasing to the taste' ('sweet') and 'thorny' ('brier') — that's why sweetbrier refers to a fragrant thorny plant.
No commonly confused words.