From Wiktionary, the free dictionary
यो (yo) + जस्तो (jasto).
यस्तो • (yasto)
- of this kind, of this sort of, such
यस्तो • (yasto)
- such, so
यस्तो • (yasto)
- such a thing
- Schmidt, Ruth L. (1993) “यस्तो”, in A Practical Dictionary of Modern Nepali, Ratna Sagar