τις

• κῐς (kis) — Thessalian
• σῐς (sis) — Arcadocypriot
• τῐρ (tir) — Elean

From Proto-Indo-European *kʷis (“who, what”). Cognates include Latin quis and Hittite 𒆪𒅖 (kuiš). Compare its interrogative form τίς (tís, “who?”).^[1]

τῐς • (tis) (with ἔγκλισις, moving back its accent)

1. (indefinite, masculine/feminine) someone, anyone, a certain one

   ναὸς m (naòs, “temple”) & τὶς … → ναός τις … (the grave accent of τὶς moves back and replaces grave with acute)

   κῆπος m (kêpos, “garden”) & τὶς → κῆπός τις (the grave accent of τὶς moves back as acute)

2. (indefinite, in neuter) something, anything, a certain thing

• “τις”, “τὶς ”, in ΛΟΓΕΙΟΝ Dictionaries for Ancient Greek and Latin (in English, French, Spanish, German, Dutch and Chinese), University of Chicago, since 2011
• “τις”, in Liddell & Scott (1940) A Greek–English Lexicon, Oxford: Clarendon Press
• “τις”, in Liddell & Scott (1889) An Intermediate Greek–English Lexicon, New York: Harper & Brothers
• τις in Bailly, Anatole (1935) Le Grand Bailly: Dictionnaire grec-français, Paris: Hachette
• τις in Cunliffe, Richard J. (1924) A Lexicon of the Homeric Dialect: Expanded Edition, Norman: University of Oklahoma Press, published 1963
• “τις”, in Slater, William J. (1969) Lexicon to Pindar, Berlin: Walter de Gruyter
• G5100 in Strong, James (1979) Strong’s Exhaustive Concordance to the Bible
• Woodhouse, S. C. (1910) English–Greek Dictionary: A Vocabulary of the Attic Language‎, London: Routledge & Kegan Paul Limited.
  • any idem, page 33.
  • any one idem, page 33.
  • certain idem, page 122.
  • cost idem, page 176.
  • indefinable idem, page 432.
  • man idem, page 510.
  • one idem, page 573.
  • person idem, page 608.
  • some idem, page 793.
  • someone idem, page 793.

Inherited from Byzantine Greek τὲς (tès) of the 11th century, through morphological levelling of the accusative and nominative plurals.

• IPA^(key): /tis/ - unaccented, pronounced together with following word
• Homophone: της (tis)

τις • (tis) f pl

1. (definite) accusative feminine plural of ο (o) (the)

   — Τις συνάντησα χθες. — Ποιες; — Τις δύο αδερφές σου.

   — Tis synántisa chthes. — Poies? — Tis dýo aderfés sou.

   — I met them yesterday. — Whom? — Your two sisters.

• τες (tes) (dialectal, literary)

• (contraction): σε (se) + τις (tis) giving στις (stis)

τις • (tis) f pl (weak personal pronoun)

1. them (3rd person feminine plural, accusative; used before the verb)

   — Τις συνάντησα χθες. — Ποιες; — Τις δύο αδερφές σου.

   — Tis synántisa chthes. — Poies? — Tis dýo aderfés sou.

   — I met them yesterday. — Whom? — Your two sisters.

• τες (tes) (used after the verb)

From Ancient Greek τίς (tís), interrogative pronoun (masculine, feminine) and τί (tí) (neuter).

• IPA^(key): /ˈtis/

τις • (tis) m (feminine τις, neuter τι)  interrogative

1. (archaic, formal, always in set phrases) who? (what? / which person or people?)

   Synonyms: ποιος; m (poios;), ποια; f (poia;), ποιο; n (poio;)

   τις πταίει; ― tis ptaíei? ― who is at fault?

   τις ει; (military, recognition) ― tis ei? ― who are you?

   τίνι τρόπω; ― tíni trópo? ― in what way?

2. see the genitive singular τίνος (tínos)

   Τίνος είσαι συ; (stereotypical phrase associated with elderly Greeks in small villages and communities to those they don't recognise)

   Tínos eísai sy?

   Whose are you?

   Synonym: ποιανού (poianoú) of ποιος (poios)

3. see the genitive plural τίνων (tínon)

   Synonym: ποιανών (poianón) of ποιος (poios)

• Of the ancient interrogative pronoun τίς (tís) the forms τίνος (tínos), plural τίνων (tínon) and the neuter τι (ti) are used in Standard Modern Greek as well. All other forms are archaic, used in quotations and set phrases.

As in the ancient inflection of τίς, here in monotonic spelling

• τίς (tís) — polytonic (older script)

• τίνι τρόπω; (tíni trópo?, “in what way?”) - older script: τίνι τρόπῳ;
  Compare the indefinitve ancient pronoun τις (tis) at εν τινι τρόπω (en tini trópo, “at a certain way”) - older script: ἔν τινι τρόπῳ
• τις βούλεται αγορεύειν; (tis voúletai agorévein?, “who wishes to speak?”) - older script: τίς βούλεται ἀγορεύειν;
• τις ει; (tis ei?, “who are you?”) (military) - older script: τίς εἶ;
• τις οίδε; (tis oíde?, “who knows?”) - older script: τίς οἶδε;
• τις πταίει; (tis ptaíei?, “who is in fault? whose fault is it?”) - older script: τίς πταίει;

• τις, τίνος - Charalambakis, Chistoforos et al. (2014) Χρηστικό λεξικό της νεοελληνικής γλώσσας (Christiko lexiko tis Neoellhnikis Glossas) (in Greek) Athens: Academy of Athens. (online since 2023 - abbreviations - symbols)
• τις - Babiniotis, Georgios (2002) Λεξικό της νέας ελληνικής γλώσσας:  [Dictionary of Modern Greek (language)] (in Greek), 2nd edition, Athens: Kentro Lexikologias , 1st edition 1998, →ISBN.
• τίνος, in Λεξικό της κοινής νεοελληνικής , Triantafyllidis Foundation, 1998 at the Centre for the Greek language