The word 尤其 is formed by combining the character 尤, which carries the core meaning of "particularly" or "outstanding", with the character 其, a classical Chinese particle often used as a demonstrative pronoun meaning "that" or "those". Together, they create a compound where 其 points to or specifies a broader context, and 尤 then singles out and emphasizes something as distinct or exceptional within that specified context, resulting in the meaning "especially" or "above all".