This is the 10241st most frequent Japanese word.
雅治
"雅治" is a Japanese given name, typically interpreted as "elegant governance" or "refined rule," combining 雅 (elegance/refinement) and 治 (govern/rule/heal).
雅治 is used as a proper noun to address someone's name in this sentence.
雅治さんは、とても親切な人です。
Mr. Masaharu is a very kind person.
雅治 here is used in the possessive form to refer to something related to the person named Masaharu.
雅治の家族は、長い歴史があります。
Masaharu's family has a long history.
雅治 is the subject of the sentence referring to the person mentioned named Masaharu.