Etymology: Originally apparently < WURTHE adj., with alteration of the ending (see -Y suffix). In later use also < WORTH n. + -Y suffix.
Definition 1.c. Without construction of a thing, action,etc. : of sufficient worth or value; sufficiently good; appropriate, fitting, suitable.
“worthy , adj., n., and adv.” OED Online, Oxford University Press, December 2018, www.oed.com/view/Entry/230401. Accessed 28 January 2019.