From Parthian tāg, attested in 𐫟𐫀𐫡𐫤𐫀𐫃 (xʾrtʾg /xārtāg/, “crown of thorns”), from Old Iranian *tāga-. Compare Arabic تاج (tāj) and Armenian թագ (tʻag).
תָּגָא • (taga) m