Sinhalese ara (2)
Clough’s Sinhala English Dictionary says Sinhalese word ródaya means “spoke or radius 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 Sinhalese ara, also originates from Tamil ār.
ródaya, wheel, specifically the rim or discus of a wheel.