父(ちち) chichiの no髪(かみ) kamiは wa白(はく)髪(はつ) hakuhatsu交(ま)じ()り() majiriになった ninatta。 My father's hair has become streaked with gray. Literal Father's hair [topic-は] gray-hair-mixed [into-に] became. 白髪交じり means 'mixed with gray hair' — a vivid compound noun. ~になった marks the change of state. Japanese has many descriptive compounds for hair states: 白髪, ハゲ, 薄毛, etc. agefamilyappearance~になる (become)
父(ちち) chichiの no髪(かみ) kamiは wa白(はく)髪(はつ) hakuhatsu交(ま)じ()り() majiriになった ninatta。 My father's hair has become streaked with gray. Literal Father's hair [topic-は] gray-hair-mixed [into-に] became. 白髪交じり means 'mixed with gray hair' — a vivid compound noun. ~になった marks the change of state. Japanese has many descriptive compounds for hair states: 白髪, ハゲ, 薄毛, etc. agefamilyappearance~になる (become)