Cailum is a unique and distinctively Scottish male given name, derived from the Gaelic word 'caol' meaning 'slender'. It is often spelled without the 'i', appearing as Caelum in some cases. The name has been used sparingly throughout history but gained minor popularity in recent times, likely due to its association with Scotland's rich cultural heritage.
"Cailum saw steady popularity with 6 births each year from 2014 to 2020, totalling 12 babies named Cailum during this period."