ततः शीरध्वजो जज्ञे यज्ञार्थं कर्षतो महीम् ।
सीता शीराग्रतो जाता तस्मात् शीरध्वजः स्मृतः ॥१८॥

tataḥ śīradhvajo jajñe
yajñārthaṁ karṣato mahīm
sītā śīrāgrato jātā
tasmāt śīradhvajaḥ smṛtaḥ

 tataḥ - from Hrasvaromā; śīradhvajaḥ - a son named Śīradhvaja; jajñe - was born; yajña-artham - for performing sacrifices; karṣataḥ - while plowing the field; mahīm - the earth; sītā - mother Sītā, the wife of Lord Rāmacandra; śīra-agrataḥ - from the front portion of the plow; jātā - was born; tasmāt - therefore; śīradhvajaḥ - was known as Śīradhvaja; smṛtaḥ - celebrated.


Text

From Hrasvaromā came a son named Śīradhvaja [also called Janaka]. When Śīradhvaja was plowing a field, from the front of his plow [śīra] appeared a daughter named Sītādevī, who later became the wife of Lord Rāmacandra. Thus he was known as Śīradhvaja.

Purport