The clause wa-bullightahā begins with wāw, but classifying that wāw as an ordinary coordination of two parallel reports would misstate the utterance. The main clause reports an effect of old age; the inserted clause prays for the listener.
A wāw must be understood through the speech act and syntactic relation of the words it introduces. The analysis thus connects iʿtirāḍ with the earlier study of faṣl and waṣl.