This is the 5913th most frequent Arabic word.
وآخرها
"And its last" or "and the last of it."
Here, the term 'وآخرها' is used to indicate the final item in a series (types of desserts) that is being referred to.
تناولتُ عدة أنواع من الحلوى وآخرها الكنافة.
I tried several types of desserts, the last of which was Kunafa.
In this sentence, 'وآخرها' highlights the final entity in a sequence of people (government officials) mentioned.
زار المدينة العديد من المسؤولين، وآخرها رئيس الوزراء.
The city was visited by several officials, the last of whom was the Prime Minister.
'وآخرها' is utilized here to specify the final item in a sequence of events.