men (Greek #3303)
properly, indicative of affirmation or concession (in fact); usually followed by a contrasted clause with 1161 (this one, the former, etc.)
KJV usage: even, indeed, so, some, truly, verily. Often compounded with other particles in an intensive or asseverative sense.
Pronounce: men
Origin: a primary particle
oun (Greek #3767)
(adverbially) certainly, or (conjunctionally) accordingly
KJV usage: and (so, truly), but, now (then), so (likewise then), then, therefore, verily, wherefore.
Pronounce: oon
Origin: apparently a primary word