Śrīmad-Bhāgavatam 9.13.18
తత: శీరధ్వజో జజ్ఞే యజ్ఞార్థం కర్షతో మహీమ్ ।
సీతా శీరాగ్రతో జాతా తస్మాత్ శీరధ్వజ: స్మృత: ॥ ౧౮ ॥
tataḥ śīradhvajo jajṣe
[tatah sheeradhvajo jajshe]
yajṣārthaṁ karṣato mahīm
[yajshaartham karshato maheem]
sītā śīrāgrato jātā
[seetaa sheeraagrato jaataa]
tasmāt śīradhvajaḥ smṛtaḥ
[tasmaat sheeradhvajah smritah]
Word-for-word
tataḥ
—
from Hrasvaromā
śīradhvajaḥ
—
a son named Śīradhvaja
jajṣe
—
was born
yajṣa-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.
Blended reading (Sanskrit + English inline)
tataḥ śīradhvajo jajṣe
tataḥ
from Hrasvaromā
śīradhvajaḥ
a son named Śīradhvaja
jajṣe
was born
yajṣārthaṁ karṣato mahīm
yajṣa-artham
for performing sacrifices
karṣataḥ
while plowing the field
mahīm
the earth
sītā śīrāgrato jātā
sītā
mother Sītā, the wife of Lord Rāmacandra
śīra-agrataḥ
from the front portion of the plow
jātā
was born
tasmāt śīradhvajaḥ smṛtaḥ
tasmāt
therefore
śīradhvajaḥ
was known as Śīradhvaja
smṛtaḥ
celebrated.
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.
Gauḍīya Ācāryas
Viśvanātha Cakravartī Ṭhākura
Gauḍīya
Translation
From Hrasvaromā came a son named Śīradhvaja (also called Janaka). When Śīradhvaja was plowing a field for sacrifice, from the front of his plow appeared a daughter named Sītā. Thus he was known as Śīradhvaja.
While plowing the field Sītā, the wife of Rāma, appeared from the front of his plow. Therefore he was called Śiradhvaja, one who has fame (dhvaja) because of a plow (śīra).
My note
Source: vedabase.io