He deservingly received the medal of honor upon retirement for his years of hard work.

deservingly 是副词，由动词 deserve（应得、值得）加上副词后缀 -ingly 构成。deserve 本身来自拉丁语，表示"值得、应得"的意思。 deservingly 表示"应得地、理所当然地"，强调获得某物是正当合理的。