His head was gray.
Atama no ke wa haiiro datta.
head; hair (on one's head); mind; brains; intellect; leader; chief; boss; captain; top; tip; beginning; start; head; person; top structural component of a kanji
indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question
hair; fur; wool; down; plumage; feathers
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
grey; gray; ashen
be; is; indicates past or completed action; indicates light imperative