Where does “подвыть” come from?

подвыть (Russian) comes from Russian выть, from Russian булат, from Persian پولاد, from Middle Persian pwlʾpt'.

Ancestry of “подвыть”, step by step

Step	Language	Word	Meaning
1	Russian	выть	to howl; to wail
2	Russian	булат	bulat, wootz steel, Damascus steel; sword, blade
3	Persian	پولاد	steel
4	Middle Persian	pwlʾpt'	—

подвыть — Etymology, Origin & Word History | Etymology Explorer