-τατος

Ancient Greek

Possibly from Proto-Indo-European *-tm̥mos with influence from *-istos.

-τατος • (-tatos) m (feminine -τάτη, neuter -τᾰτον); first/second declension

Added to adjective stems to form superlative forms
‎δῆλος (dêlos, “clear”) + ‎-τατος (-tatos) → ‎δηλότατος (dēlótatos, “the clearest”)

‎σοφός (sophós, “wise”) + ‎-τατος (-tatos) → ‎σοφώτατος (sophṓtatos, “the wisest”)

First and second declension of -τᾰτος; -τᾰτη; -τᾰτον (Attic)

Number	Singular			Dual			Plural
Case/Gender	Masculine	Feminine	Neuter	Masculine	Feminine	Neuter	Masculine	Feminine	Neuter
Nominative	-τᾰτος -tătos	-τᾰτη -tătē	-τᾰτον -tăton	-τᾰτω -tătō	-τᾰτᾱ -tătā	-τᾰτω -tătō	-τᾰτοι -tătoi	-τᾰται -tătai	-τᾰτᾰ -tătă
Genitive	-τᾰτου -tătou	-τᾰτης -tătēs	-τᾰτου -tătou	-τᾰτοιν -tătoin	-τᾰταιν -tătain	-τᾰτοιν -tătoin	-τᾰτων -tătōn	-τᾰτων -tătōn	-τᾰτων -tătōn
Dative	-τᾰτῳ -tătōi	-τᾰτῃ -tătēi	-τᾰτῳ -tătōi	-τᾰτοιν -tătoin	-τᾰταιν -tătain	-τᾰτοιν -tătoin	-τᾰτοις -tătois	-τᾰταις -tătais	-τᾰτοις -tătois
Accusative	-τᾰτον -tăton	-τᾰτην -tătēn	-τᾰτον -tăton	-τᾰτω -tătō	-τᾰτᾱ -tătā	-τᾰτω -tătō	-τᾰτους -tătous	-τᾰτᾱς -tătās	-τᾰτᾰ -tătă
Vocative	-τᾰτε -tăte	-τᾰτη -tătē	-τᾰτον -tăton	-τᾰτω -tătō	-τᾰτᾱ -tătā	-τᾰτω -tătō	-τᾰτοι -tătoi	-τᾰται -tătai	-τᾰτᾰ -tătă
Derived forms	Adverb			Comparative			Superlative
Derived forms	-τᾰτα -tăta			—			—
Notes:	This table gives Attic inflectional endings. For declension in other dialects, see Appendix:Ancient Greek dialectal declension.

Category Ancient Greek terms suffixed with -τατος not found

-τᾱτος • (-tātos) f

-τατος • (-tatos)

Added to most adjectives to form the absolute superlative.
‎σοφός (sofós, “wise”) + ‎-τατος (-tatos) → ‎σοφότατος (sofótatos, “very wise”)

‎βαθύς (vathýs, “deep”) + ‎-τατος (-tatos) → ‎βαθύτατος (vathýtatos, “very deep”)

Category Greek terms suffixed with -τατος not found