Friday ranks at #910 with 130 entries, registered male. The name is the day of the week, etymologically named for the Norse goddess Frigg. On a pet registry Friday functions as a day-of-the-week novelty pick that often traces to the day the pet was adopted, born, or first met by the household.
The adoption-day-as-name register
Friday sits with Sunday, Saturday, and Tuesday in the day-of-week pet pocket. The naming logic is autobiographical — the household adopted or rescued the pet on a Friday, and the day became the name as a permanent record of when the dog joined the family. Most Friday pets are rescues whose origin story includes a specific date.
The Robinson Crusoe overlay
For a slice of registry Fridays, the conscious reference is Friday from Daniel Defoe's 1719 Robinson Crusoe — the loyal companion who joined Crusoe on the island. The cohort skews toward literary-pet households, and the loyalty-and-companionship reading is doing the work alongside the day-of-week reading.
Sound and breed lean
Two syllables, front-stressed (FRY-day), with the bright FR-opening and the open AY-ending giving the name musical recall texture. Excellent shape across distances. The name lands flat across breeds — Labs, mixed rescues, and small companion breeds. The human Friday page shows minimal SSA presence; this is largely a pet-only register.