The Compendium of Caraka 4.8.26_1

4.8.26_1

upavāsavratakarmaparāyāḥ punaḥ kadāhārāyāḥ snehadveṣiṇyā vātaprakopaṇoktānyāsevamānāyā garbho vṛddhiṃ na prāpnoti pariśuṣkatvāt;sa cāpi kālamavatiṣṭhate 'atimātram, aspandanaśca bhavati, taṃ tu nāgodaramityācakṣate//

Moreover, in one devoted to fasting and vow-observances, consuming bad food, averse to unctuous substances, and indulging in factors stated to provoke vāta, the embryo does not attain growth because of drying up; it too remains [in the womb] excessively beyond time and becomes motionless; that, however, they designate as nāgodara.