زَيْدٌ يَكْتُبُ وَيَمْنَعُ
Zayd writes and prevents (something).
Two actions associated with one person need not be synonymous. They may belong to separate domains while still forming a meaningful combined description. The object of “yamnaʿu” would be inferred from context.
The pair “yuʿṭī wa-yamnaʿu” (gives and withholds) illustrates how opposition itself can be a link: the mind naturally groups the contrasting actions. Requiring every coordinated term to be similar rather than related would be too narrow.