IPA: //ˈswiːtˌbraɪər//
KK: /ˈswitˌbraɪər/
A type of rose plant that has thorny stems, fragrant leaves, and produces bright pink flowers followed by red fruit called hips.
The sweetbriar in the garden bloomed beautifully this spring.
Sweetbriar is formed from "sweet" (from Old English *swēte*, meaning pleasing to the taste or smell) and "briar" (from Old French *bruyère*, meaning a thorny plant). The word refers to a thorny plant that has a sweet fragrance or taste, often associated with roses.
Think of something that is 'pleasing to the taste' ('sweet') and a 'thorny plant' ('briar') — together, they describe a fragrant plant that is both sweet and thorny.
No commonly confused words.