de (Greek #1161)
but, and, etc.
KJV usage: also, and, but, moreover, now (often unexpressed in English).
Pronounce: deh
Origin: a primary particle (adversative or continuative)
monon (Greek #3440)
merely
KJV usage: alone, but, only.
Pronounce: mon'-on
Origin: neuter of 3441 as adverb