1) West Virginia neighbor 2) Bird feather 3) Contour feather 4) Cornish surname 5) Feather 6) Feather, to an ornithologist 7) Indian family name 8) Perfect feather 9) Plume 10) Quaker St 
Latin, meaning: feather, wing 
• (n.) A perfect, or normal, feather.
Pen'na noun ; plural Pennæ . [ Latin ] (Zoology) A perfect, or normal, feather. 
penna (s), pennae (pl) A contour feather of birds that helps to form the outer contour of a bird's plumage, as distinguished from plume or down feathers.