Eucharist (n.)

word-forming element, in modern use meaning "good, well," from Greek eus "good," eu "well" (adv.), also "luckily, happily" (opposed to kakos), as a noun, "the right, the good cause," from PIE *(e)su- "good" (source also of Sanskrit su- "good," Avestan hu- "good"), originally a suffixed form of root *es- "to be." In compounds the Greek word had more a sense of "greatness, abundance, prosperity," and was opposed to dys-.

Proto-Indo-European root meaning "to like, want."

It forms all or part of: catachresis; charisma; chervil; chrestomathy; Eucharist; exhort; exhortation; greedy; hortative; hortatory; yearn.

It is the hypothetical source of/evidence for its existence is provided by: Sanskrit haryati "finds pleasure, likes," harsate "is aroused;" Avestan zara "effort, aim;" Greek khresthai "to lack, want; use, make use of," kharis "grace, favor," khairein "to rejoice, delight in;" Latin hortari "exhort, encourage, urge, incite, instigate;" Russian zhariti "awake desire, charm;" Old English giernan "to strive, desire, yearn;" Gothic gairnei "desire."

Proto-Indo-European root meaning "to be."

It forms all or part of: absence; absent; am; Bodhisattva; entity; essence; essential; essive; eu-; eucalyptus; Eucharist; Euclidean; Eudora; Eugene; eugenics; eulogy; Eunice; euphemism; euphoria; euthanasia; homoiousian; improve; interest; is; onto-; Parousia; present (adj.) "existing at the time;" present (n.2) "what is offered or given as a gift;" proud; quintessence; represent; satyagraha; sin; sooth; soothe; suttee; swastika; yes.

It is the hypothetical source of/evidence for its existence is provided by: Sanskrit asmi, Hittite eimi, Greek esti-, Latin est, Old Church Slavonic jesmi, Lithuanian esmi, Gothic imi, Old English eom, German ist.