worthy (adj.)

mid-13c., "having merit," from worth (n.) + -y (2). Old English had weorþful in this sense. Attested from late 14c. as a noun meaning "person of merit" (especially in Nine Worthies, famous men of history and legend: Joshua, David, Judas Maccabæus, Hector, Alexander, Julius Cæsar, Arthur, Charlemagne, Godfrey of Bouillon -- three Jews, three gentiles, three Christians). Related: Worthily; worthiness.

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Definitions of worthy from WordNet
worthy (adj.)
having worth or merit or value; being honorable or admirable;
a worthy fellow
a worthy cause
worthy (adj.)
worthy of being chosen especially as a spouse;
Synonyms: desirable / suitable
worthy (adj.)
having qualities or abilities that merit recognition in some way;
a fact worthy of attention
behavior worthy of reprobation
worthy (n.)
an important, honorable person (word is often used humorously);