CC Madhya 24.304

‘api’-śabda — avadhāraṇe, seha cāri bāra
cāri-śabda-saṅge evera karibe uccāra
Synonyms: 
api-śabda — the word api; avadhāraṇe — in the matter of ascertaining; seha cāri bāra — those four times; cāri-śabda — four words; saṅge — with; evera — of the word eva; karibe — one can do; uccāra — pronouncing.
Translation: 
“The word ‘api’ is then used in the sense of ascertainment, and then the word ‘eva’ can be uttered four times with four words.