fourth
adj. & n. 1 next after third. 2 any of four equal parts of a thing. fourthly adv. [old english: related to *four]
a. Next in order after the third; the ordinal of four.
adj. & n. 1 next after third. 2 any of four equal parts of a thing. fourthly adv. [old english: related to *four]
a. Next in order after the third; the ordinal of four.