From Wiktionary, the free dictionary
туһаҕа (tuhağa, “benefit”) + тур (tur, “to stand”). Idiomatically, "to stand as a benefit", hence "to be beneficial".
туһаҕа тур • (tuhağa tur)
- to be useful, to avail
- Synonym: туһалаа (tuhalaa, “to benefit, to help”)