yfed

As a noun terms

is .

As a verb yed

is (archaic) to speak; sing or yed can be to burrow underground, as a rabbit or mole; also said of miners.

As a noun yed

is (archaic) a saying or yed can be a burrow; a hole made by an animal in the ground or yed can be .

As a proper noun fed

is (us|economics) the federal reserve board or system.