The name in 1 Chr. 8,9 reads Malcham (in the
King James Version) or Malcam (in the English standard version)—note the absence of a letter "l" in the second syllable.
And no,
Malcolm has a solid Scottish etymology and does not derive from any of the Biblical names you bring up. Any similarity is purely coincidental (and, given the simple form and structure of the names, such coincidences are bound to happen).
This message was edited 2/9/2017, 9:17 AM