Rasarnava 2.17

2.17

kākiṇī kīkaṇī nārī tathaiva kāñcikācinī
kṛṣṇapakṣe ṛtumatī sā nārī kākiṇī smṛtā //

The Kākiṇī, Kīkaṇī woman, and likewise the Kāñcikācinī; / she who is menstruating in the dark fortnight is known as a Kākiṇī woman;