Note 14:

bajraṭhī–ṅgā The meaning "thunderbolt staff" was approved by Karṇa Vīr. However, Briggs [1989:14-15] notes that a Kānphaṭa yogin holds in his hand a rosary, a japa mālā, made of nummulities, the smaller ones of which are called bājra ṭhumrā. This perhaps suggests bajraṭhī–ṅgā. However, in the Lahã area of Jājarkoṭ, any very strong staff or walking stick is also called a bajraṭhī–ṅgā.