na-adjective, noun which may take the genitive case particle 'no'
large-pupiled; dark-eyed; having large irises
Describes eyes where the dark part (iris/pupil) appears large or prominent, often giving a cute or striking impression. Used for people, dolls, or characters.
She has large, dark eyes with prominent pupils.
That doll has a cute face with large dark eyes.
Standard spelling using がち (tendency).
Alternate spelling using 勝ち (predominance); less common but seen.
Compound of 黒目 (dark part of the eye) + がち (tendency/predominance). The exact historical derivation is uncertain, but the meaning is transparent from its components.