-tu

See also: tu, tú, and þú

Afar

Pronunciation

• IPA^(key): /-tu/, [-tʊ]

Suffix

-tu

1. Form of -ytu used after nouns ending in consonants.

Declension

Declension of -tu
absolutive	-tu
predicative	-tu
subjective	-tí
genitive	-tí
Postpositioned forms l-case -tul k-case -tuk t-case -tut h-case -tuh

References

• E. M. Parker; R. J. Hayward (1985) An Afar-English-French dictionary (with Grammatical Notes in English), University of London, →ISBN, page 228
• Mohamed Hassan Kamil (2015) L’afar: description grammaticale d’une langue couchitique (Djibouti, Erythrée et Ethiopie)‎^[1], Paris: Université Sorbonne Paris Cité (doctoral thesis)

Basque

Alternative forms

• -du (see usage notes)

Etymology

From Latin -tum, a past participle forming suffix. Basque borrowed Latin verbs in their participle form (for example, aditu (“to hear”) from audītum, neuter perfect passive participle of audiō (“I hear”)), with the ending being reinterpreted as a new verb forming suffix.

Suffix

-tu

1. A verb-forming suffix.

   ‎euskara (“Basque”) + ‎-tu → ‎euskaratu (“to translate into Basque”)

   ‎ohera (“to, towards bed”) + ‎-tu → ‎oheratu (“to go to bed”)

   ‎gehi (“plus”) + ‎-tu → ‎gehitu (“to add”)

2. Used to form adjectives, roughly corresponding to the English past participle forming suffix -ed.

   ‎gehi (“plus”) + ‎-tu → ‎gehitu (“augmented”)

Usage notes

• Takes the form -du after words ending in /l/ or /n/:

  ‎lagun (“friend”) + ‎-tu → ‎lagundu (“to help”)

• This is the only productive verb-forming suffix in modern Basque, having displaced the native suffix -i.
• Verbs taking this suffix have no synthetic forms (with the exception of ezagutu (“to know”)).

Derived terms

Basque terms suffixed with -tu

Estonian

Etymology

From Proto-Finnic *-t'oin. Cognate with Finnish -ton/-tön.

Suffix

-tu (genitive -tu, partitive -tut, comparative -tum, superlative kõige -tum)

1. -less

Inflection

Inflection of -tu (ÕS type 1/ohutu, no gradation)

	singular	plural
nominative	-tu	-tud
accusative	-tu	-tud
genitive	-tu	-tute
partitive	-tut	-tuid
illative	-tusse	-tutesse -tuisse
inessive	-tus	-tutes -tuis
elative	-tust	-tutest -tuist
allative	-tule	-tutele -tuile
adessive	-tul	-tutel -tuil
ablative	-tult	-tutelt -tuilt
translative	-tuks	-tuteks -tuiks
terminative	-tuni	-tuteni
essive	-tuna	-tutena
abessive	-tuta	-tuteta
comitative	-tuga	-tutega

Derived terms

Estonian terms suffixed with -tu

Finnish

Pronunciation

• IPA^(key): /-tu(ˣ)/, [-t̪u(ʔ)]

Suffix

-tu (front vowel harmony variant -ty)

1. Alternative form of -ttu

Anagrams

• -ut

Garifuna

Suffix

-tu

1. nominalizing suffix deriving agent nouns of feminine gender (see -ti for masculine).

   Abuwagu ― to cook

   Abuwagutu ― chef (female)

Latin

Suffix

-tū

1. ablative singular of -tus

Old Irish

Alternative forms

• -atu, -etu, -thu, -tiu

Etymology

From Proto-Celtic *-tūss (stem *-tūt-; compare Welsh -tid), from Proto-Indo-European *-tuHts (whence Latin -tūs and Gothic -𐌳𐌿𐌸𐍃 (-dūþs)).

Suffix

-tu m

1. -ness, -ity

Inflection

Masculine d-stem
	Singular	Dual	Plural
Nominative	-tu	—	—
Vocative	-tu	—	—
Accusative	-taidN	—	—
Genitive	-tad	—	—
Dative	-taidL	—	—
Initial mutations of a following adjective: H = triggers aspiration L = triggers lenition N = triggers nasalization

Derived terms

Old Irish terms suffixed with -tu

Further reading

• Thurneysen, Rudolf (1940, reprinted 2003), D. A. Binchy and Osborn Bergin, transl., A Grammar of Old Irish, Dublin Institute for Advanced Studies, →ISBN, § 258, pages 165–66

Old Norse

Alternative forms

• þú
• -du, -ðu

Pronoun

-tu (enclitic)

1. enclitic form of þú
   • Haralds saga hins hárfagra 41.

     Nú tóktu svá við sem várr konungr vildi.

   • Lokasenna 24.

     En þik síða kóðu / Samseyju í / ok draptu á vétt sem vǫlur / vitka líki / fórtu verþjóð yfir / ok hugða ek þat args aðal

   ‎skalt (“shalt”) + ‎þú → ‎skaltu (“shalt thou”)

   ‎lát (“let (impr.)”) + ‎þú → ‎láttu (“let (impr.)”)

Usage notes

For reasons related to syntax, as well as Old Norse often explicitly stating the subject of verbs in the imperative, the verb is often followed by the subject pronoun. For þú, this is when it may take on an enclitic form. This is not to say, however, that whenever þú comes after a verb, it will always take an enclitic form. It could well stay separate for the sake of emphasis.

Which one of the variants -du, -ðu and -tu to use, is decided by the same rules that decide which dental suffix to take in the type 1 weak verbs. This form is used after hard consonants.

Descendants

This feature is also present in modern Icelandic verb conjugation, with its imperative forms with appended personal pronouns (though only in the second person).

See also

• -k

Turkish

preceding vowel
A / I	E / İ	O / U	Ö / Ü
-tı	-ti	-tu	-tü

Pronunciation

• IPA^(key): /tu/

Suffix

-tu

1. Form of -tı after the vowels O / U.

   ‎al- (“to take”) + ‎-ın (“to take offense”) + ‎-tı → ‎alıntı (“quotation, citation”)

   ‎ak- (“to flow”) + ‎-ın + ‎-tı → ‎akıntı (“flow, current, stream”)

   ‎çıt (“click or crack sound”) + ‎-ır + ‎-tı → ‎çıtırtı (“clicking, cracking”)

   ‎mor (“purple”) + ‎-ar (“to turn purple”) + ‎-tı → ‎morartı (“bruise, a purplish spot”)