Meaning and Origin
English: status name for a young knight or novice at arms, Middle English and Old French bacheler (medieval Latin baccalarius), a word of unknown ultimate origin. The word had already been extended to mean ‘(young) unmarried man’ by the 14th century, but it is unlikely that many bearers of the surname derive from the word in that sense.
Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4
Variants: Batchelar, Batchlor and Batcheldor