grandpaternal

As adjectives the difference between grandpaternal and grandmaternal

is that grandpaternal is of or relating to a grandfather while grandmaternal is of or relating to a grandmother.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective grandpaternal is

of or relating to a grandfather.

As a noun grandfather

is a father of someone’s parent.

As a verb grandfather

is to retain existing laws or rules only for those people or organisations that were previously affected by them, and apply new laws or rules to the unaffected people or organizations.

As an adjective grandpaternal is

of or relating to a grandfather.

Grandpaternal is a hyponym of grandparental.

As adjectives the difference between grandpaternal and grandparental

is that grandpaternal is of or relating to a grandfather while grandparental is of or relating to a grandparent.