The correct spelling of the word is "periwinkle", not "periwinkl". The phonetic transcription of "periwinkle" in the International Phonetic Alphabet (IPA) is /ˈpɛrɪwɪŋkəl/. The first syllable is pronounced with the short "e" sound /ɛ/, followed by the "r" sound /r/. The second syllable has the short "i" sound /ɪ/, then the /ŋ/ consonant cluster, and the third syllable has the schwa sound /ə/ and the "l" sound /l/. It's important to use correct spelling and pronunciation to communicate effectively.
The word "periwinkle" originates from the Middle English term "perwynke" or "parwyne", which is believed to have been derived from the Old English word "pervinca" or "pærwince". This Old English term was adapted from the Latin word "pervinca", which referred to the periwinkle plant. The Latin word itself is thought to have come from the earlier Greek term "pervinx" or "pervinka", which was used to describe the same plant.