The name Jacub is a variant of Jacob, also of Hebrew origin, meaning he who supplants. Jacob has historical significance in Eastern European cultures, but its common usage is not well-documented. The name Jacub has a similar etymology to Jacob, derived from the biblical figure who was born holding his twin brother's heel and later took his place as the firstborn son. The use of Jacub has remained relatively consistent over time, reflecting its cultural significance in these regions.
