pro tem/ˌproh ʹtem/ adv and adj

• by a long shot
• by and by
• by and large
• by a neck
• by a nose
• by any means
• by appointment/by appointment to the Queen
• by-blow
• by-catch
• by chance
• by common consent
• by courtesy of/courtesy of
• by default
• by degrees
• by dint of
• bye
• bye-
• bye-bye
• bye-byes
• byelaw
• by-election
• bye-line
• Byelorussian
• by far
• by force of