In Anuśāsanaparva (Anusasanaparva) of Mahābhārata, in course of describing the varṇasaṁkara (varnasamkara; hybrid castes), children born of a Vaiśya (Vaisya) woman, sired by a Śūdra (Sudra)-man are referred to as Āyogava (Ayogava). By profession they are carpenters, capable of earning by their own labour. Brāhmaṇas do not accept offerings from them.
śūdrāyogavaścāpi vaiśyāṁ grāmyadharmiṇaḥ
Again, children born of a Sairindhrī (Sairindhri, a woman who moves freely and lives a professional hair-dresser and decorator) and and a Vaideha-man are also known as Āyogava. They are known as vyādha (vyadha;hunters).
Children of a Vaiśya-man and a Brāhmaṇī (Brahmani; a Brahmana woman) are known as Vaideha. They used to be appointed to guard the antaḥpura (antahpura; the inner quarters of aristocratic households). The children of Vaideha men and Āyogavī women were divided in three varṇas — Kṣudra (Kshudra), Andha and Kārāvara (Karavara). Being people of low caste, they had to live outside the villages.