ἀγαθίς

Ancient Greek

No etymology. Frisk connects Sanskrit गध्य (gadhya, “to be seized or gained as booty”).

ἀγᾰθῐ́ς • (agăthĭ́s) f (genitive ἀγᾰθῐ́δος); third declension

Third declension of ἡ ἀγᾰθῐ́ς; τῆς ἀγᾰθῐ́δος (Attic)

Case / #	Singular	Dual	Plural
Nominative	ἡ ἀγᾰθῐ́ς hē agăthĭ́s	τὼ ἀγᾰθῐ́δε tṑ agăthĭ́de	αἱ ἀγᾰθῐ́δες hai agăthĭ́des
Genitive	τῆς ἀγᾰθῐ́δος tês agăthĭ́dos	τοῖν ἀγᾰθῐ́δοιν toîn agăthĭ́doin	τῶν ἀγᾰθῐ́δων tôn agăthĭ́dōn
Dative	τῇ ἀγᾰθῐ́δῐ tēî agăthĭ́dĭ	τοῖν ἀγᾰθῐ́δοιν toîn agăthĭ́doin	ταῖς ἀγᾰθῐ́σῐ / ἀγᾰθῐ́σῐν taîs agăthĭ́sĭ(n)
Accusative	τὴν ἀγᾰθῐ́δᾰ tḕn agăthĭ́dă	τὼ ἀγᾰθῐ́δε tṑ agăthĭ́de	τᾱ̀ς ἀγᾰθῐ́δᾰς tā̀s agăthĭ́dăs
Vocative	ἀγᾰθῐ́ς agăthĭ́s	ἀγᾰθῐ́δε agăthĭ́de	ἀγᾰθῐ́δες agăthĭ́des
Notes:	This table gives Attic inflectional endings. For declension in other dialects, see Appendix:Ancient Greek dialectal declension. Nominative singular -ς (-s) arose by reduction of the original cluster *-ds.

Belardi compared γάθια (gáthia, “sausages”); if this is correct, then the word would be Pre-Greek, because of the prothetic vowel.

ἀγᾰθῐ́ς • (agăthĭ́s) f (genitive ἀγᾰθῐ́δος); third declension

Hesychius gives the definition as: σησᾰμῐ́ς (sēsămĭ́s, “mixture of sesame seeds, roasted and pounded with honey”).

Third declension of ἡ ἀγᾰθῐ́ς; τῆς ἀγᾰθῐ́δος (Attic)

Case / #	Singular	Dual	Plural
Nominative	ἡ ἀγᾰθῐ́ς hē agăthĭ́s	τὼ ἀγᾰθῐ́δε tṑ agăthĭ́de	αἱ ἀγᾰθῐ́δες hai agăthĭ́des
Genitive	τῆς ἀγᾰθῐ́δος tês agăthĭ́dos	τοῖν ἀγᾰθῐ́δοιν toîn agăthĭ́doin	τῶν ἀγᾰθῐ́δων tôn agăthĭ́dōn
Dative	τῇ ἀγᾰθῐ́δῐ tēî agăthĭ́dĭ	τοῖν ἀγᾰθῐ́δοιν toîn agăthĭ́doin	ταῖς ἀγᾰθῐ́σῐ / ἀγᾰθῐ́σῐν taîs agăthĭ́sĭ(n)
Accusative	τὴν ἀγᾰθῐ́δᾰ tḕn agăthĭ́dă	τὼ ἀγᾰθῐ́δε tṑ agăthĭ́de	τᾱ̀ς ἀγᾰθῐ́δᾰς tā̀s agăthĭ́dăs
Vocative	ἀγᾰθῐ́ς agăthĭ́s	ἀγᾰθῐ́δε agăthĭ́de	ἀγᾰθῐ́δες agăthĭ́des
Notes:	This table gives Attic inflectional endings. For declension in other dialects, see Appendix:Ancient Greek dialectal declension. Nominative singular -ς (-s) arose by reduction of the original cluster *-ds.