Uncertain; possibly a modern variant of Damon or Kaimi.
Kaymon is a rare modern invention with no single established etymology. It likely originated as a creative blend of the phonetic 'Kay' sound with the 'mon' suffix found in names like Damon or Simon, or it may be a variant of the Hawaiian name Kaimi meaning 'the seeker'.
Less common today
Kaymon isn't in the latest US Top 1000. It last peaked at #8,096 in 2008.
US births per 5-year period, 1990βpresent (SSA data).