expression
be that as it may; having said that; even so
Concessive expression used to acknowledge a preceding statement while introducing a contrasting or qualifying point. Similar to とは言うものの, but slightly more formal or literary.
See also: とは言うものの
彼は若いと言えど、経験は豊富だ。
He may be young, but he has a wealth of experience.
難しいと言えど、挑戦する価値はある。
Even though it's difficult, it's worth taking on the challenge.