Enter a clue or pattern or both:
The Clue
Become effete, in a way (7 letter answer)
The Answer
INBREED
Tags
Notes
The answer INBREED is rarely seen, appearing only about once every 2400 puzzles.
Related Clues
Intermarry
Reproduce in kind
Keep it in the family?
Not go outside the family
Way to produce a champion animal, maybe