Brihat Samhita
नक्षत्रेण सहौदयं उपगच्छति येन देवपतिमन्त्री । तत्संज्ञं वक्तव्यं वर्षं मासक्रमेणएव ॥ ८-०१ ॥
The years of Jupiter (bṛhaspati) take their names from the several Nakṣatras in which he reappears after his conjunction with the Sun; and these names are identical with the names of the lunar months.
english translation
nakSatreNa sahaudayaM upagacchati yena devapatimantrI । tatsaMjJaM vaktavyaM varSaM mAsakrameNaeva ॥ 8-01 ॥
hk transliteration by Sanscript