The word niṣpravāṇi is irregularly formed without adding the affix kap though the last word is a nadī word.,
The word प्रवाणी means either प्रीयतेऽस्यां or प्रवयन्ति तया ॥ Here ल्युट् is added to the root वि 'to weave': and denotes the instrument of weaving i. e. 'a shuttle'. निर्गता प्रवाणी अस्य = निष्प्रवाणिः पटः, निष्प्रवाणिः कम्बलः = अपनीतशलाकः \a new unbleached cloth or blanket\, from which the shuttle has not yet been extracted, fresh from the loom. The न is changed to ण by 8.4.29.,