"Blend of Terri and Lynn"
The name Terrilynn is commonly a female name from the "American" origin.
Terrilynn is an American compound name built from two established given names. Terri is a short form of Teresa or Theresa, and Lynn is a given name taken from the Welsh word llyn, meaning lake. The joined form appears in US birth records from 1946, in the period when two-part girls' names of this kind were being coined in the United States.
The pronunciation of Terrilynn is TER-ee-lin.
