Pure lake or slender waterfall
A modern American compound name likely combining the phonetic elements of Kay or Cae (often associated with the Greek 'pure') and the suffix -lynn (derived from the Welsh word for 'lake'). It represents a contemporary trend of blending traditional sounds to create unique feminine identities.
Fewer than 5 girls were named Caylynn in 2025.
US births per 5-year period, 1990–present (SSA data).