Two Obscure Sanskrit Words Related to the Cārvāka: pañcagupta and kuṇḍakīṭa

Two words, pañcagupta and kuṇḍakīṭa, are found in modern Sanskrit lexicons such as the Śabdakalpadruma, the Vācaspatya, the Sanskrit-Wörterbuch, and A Sanskrit English Dictionary. They are said to signify the Cārvāka philosophy and an expert in the Cārvāka philosophy respectively. Both the words have been taken from some twelfth-century Sanskrit kośas but no example of actual use is available. Nor do they occur in any earlier Sanskrit kośa, such as the Amarakośa and the Halāyudhakośa. The inference is that the words must have appeared in some late philosophical work that was critical of the materialist Cārvāka system of philosophy and the kośakāras found them in the same source