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SB 10.53.39

evaṁ prema-kalā-baddhā
 vadanti sma puraukasaḥ
kanyā cāntaḥ-purāt prāgād
 bhaṭair guptāmbikālayam
Synonyms: 
evam — thus; prema — of pure love; kalā — by the increase; baddhāḥ — bound; vadanti sma — they spoke; pura-okasaḥ — the residents of the city; kanyā — the bride; ca — and; antaḥ-purāt — from the inner palace; prāgāt — went out; bhaṭaiḥ — by guards; guptā — protected; ambikā-ālayam — to the temple of Goddess Ambikā.
Translation: 
Bound by their swelling love, the city’s residents spoke in this way. Then the bride, protected by guards, left the inner palace to visit the temple of Ambikā.
Purport: 

Śrīla Viśvanātha Cakravartī quotes the Medinī dictionary’s definition of the word kalā as follows: kalā mūle pravṛddhau syāc chilādāv aṁśa-mātrake. “The word kalā means ‘a root,’ ‘increase,’ ‘a stone’ or ‘a mere part.’”