-ու

• (Eastern Armenian) IPA^(key): /u/, [u]
• (Western Armenian) IPA^(key): /u/, [u]

From Old Armenian -ու (-u).

-ու • (-u)

1. forming adjectives

-ու • (-u)

1. the future converb I ending of verbs

   սիրելու ― sirelu ― future converb I of սիրել (sirel)

From Old Armenian -ու (-u).

-ու • (-u)

1. the singular dative case ending of u-declension nouns

   ձիու ― jiu ― dative singular case of ձի (ji)

   մարդու ― mardu ― dative singular case of մարդ (mard)

• -ի (-i)

From Proto-Indo-European *-usyā, the feminine form of the participle suffix *-wes. See also -ուք (-ukʻ).

-ու • (-u)

1. Forming adjectives.

   հատանեմ ― hatanem ― I cut

   հատու ― hatu ― sharp, cutting

   կծանեմ ― kcanem ― I bite

   կծու ― kcu ― tart, pungent

   աղ ― ał ― salt

   աղու ― ału ― agreeable

• Armenian: -ու (-u)

• Gočanean, Pōġos (2011) Dasakan grabari gorcnakan kʻerakanutʻiwn [Practical Grammar of Classical Old Armenian]‎^[1] (in Armenian), Vienna and Yerevan: Mekhitarist Press, page 65
• J̌ahukyan, Geworg (1998) “-ու”, in Hin hayereni verǰacancʻneri cagumə [The Origin of Old Armenian Suffixes] (Hayocʻ lezvi hamematakan kʻerakanutʻyan harcʻer; 2) (in Armenian), Yerevan: Anania Širakacʻi, pages 5–48

Contamination of Proto-Indo-European *-u stem vowel with the *-yo, *-yā suffix.

-ու • (-u)

1. found in a few words, such as արու (aru), եղջերու (ełǰeru), մեղու (mełu), ուրջու (urǰu)

• J̌ahukyan, Geworg (1998) “-ու”, in Hin hayereni verǰacancʻneri cagumə [The Origin of Old Armenian Suffixes] (Hayocʻ lezvi hamematakan kʻerakanutʻyan harcʻer; 2) (in Armenian), Yerevan: Anania Širakacʻi, pages 5–48

According to Godel, identical with the -ու- (-u-) stem vowel. The remaining stem, standing in contrast to the nominative/accusative singular (which lost its stem), was apt to function as a full-fledged case form.

-ու • (-u)

1. singular genitive/dative/instrumental/locative marker for u-declension words

   ծովու ― covu ― genitive/dative/instrumental/locative singular of ծով (cov)

• Godel, Robert (1975) An introduction to the study of classical Armenian, Wiesbaden: Dr. Ludwig Reichert Verlag, page 104