Enter a clue or pattern or both:
Partner of vigor (3 letter answer)
The answer VIM is common and appears about once every 200 puzzles.
Companion of vigor
Joie de vivre
What pompon girls display
VIM as a noun:
1. (energy, vim, vitality) = a healthy capacity for vigorous activity; "jogging works off my excess energy"; "he seemed full of vim and vigor"
2. (energy, muscularity, vigor, vigour, vim) = an imaginative lively style (especially style of writing); "his writing conveys great energy"; "a remarkable muscularity of style"