Despite meeting for the first time, their conversation was filled with genuine cordiality that impressed me.

cordiality 是由形容词 cordial（真诚友好的）加上名词后缀 -ity 构成的名词形式。cordial 本身来自拉丁语词根 cord-（意为"心"），所以 cordiality 字面意思是"发自内心的态度"，引申为"真诚友善、热情亲切"的意思。