Worthy

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Middle English: from worth + -y1.

wiktionary

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From Middle English worthy, wurthi, from Old English *weorþiġ(“"worthy"”), equivalent to worth +‎ -y. Cognate with Dutch waardig(“worthy”), Middle Low German werdig(“worthy”), German würdig(“worthy”), Swedish värdig(“worthy”), Icelandic verðugt(“worthy”).

From Middle English worthien, wurthien, from Old English weorþian(“to esteem, honor, worship, distinguish, celebrate, exalt, praise, adorn, deck, enrich, reward”), from Proto-Germanic *werþōną(“to be worthy, estimate, appreciate, appraise”), from Proto-Indo-European *wert-(“to turn, wind”). Cognate with German werten(“to rate, judge, grade, score”), Swedish värdera(“to evaluate, rate, size up, assess, estimate”), Icelandic virða(“to respect, esteem”).

etymonline

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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.