Abridged Amarakośa 1.78

1.78

1:78
pakṣau pūrvāparau śuklakṛṣṇau māsastu tāvubhau|
dvau dvau mārgādimāsau syādṛtustairayanaṃ tribhiḥ ||

1:78
The two fortnights, the former and the latter, are the bright and dark [fortnights]; both together are a month. / Two months each beginning with Mārgaśīrṣa constitute a season; through three of them is a solstice [or course of the sun].