Strong's H637 · Hebrew

'aph

af

a primitive particle; meaning accession (used as an adverb or conjunction); also or yea; adversatively though

Scholarly Lexicons

Brown-Driver-Briggs (BDB)

 H637 אַף conj . denoting addition, esp. of something greater, also , yea  

Brown-Driver-Briggs Hebrew Lexicon (BDB), 1906 — public domain