قفل

From the root ق ف ل (q f l). The word for a lock is presumed to be from Aramaic פוּפְלָא / ܩܘܼܦ݂ܠܵܐ (qup̄lā, “bolt; bond”) and the verbs “to lock” denominal verbs; to be separated from genuine meanings related to drying, withering up and the returning from a journey related by the idea of retraction or folding-up (leaves as well as belongings; mind also the well-known قَافِلَة (qāfila, “caravan”)), while the meanings of amassing and usuring are derived from perhaps both by the idea of locking up