From Aramaic ܐܪܒܥ (ʾarbaʿ), from Proto-Semitic *ʔarbaʕum.
ܐܰܪܒ݆ܰܥ (ʾarpaʿ) f (masculine ܐܰܪܒ݆ܥܰܐ (ʾarpʿa))