Pali ara (2)
According to Davids and Stede’s Pali-English Dictionary, Pali word ara means “the spoke of a wheel.” It traces its origin to the Tamil root ār through the transformation of ār > ṛi > ara > ara. The following word, related to Pali ara, also originates from Tamil ār.
araghaṭṭa, a wheel for raising water from a well.