-ер

• -ар (-ar), -р (-r), -с (-s)

From Proto-Turkic *-ür.

-ер • (-er)

1. Used to form indefinite future tense.
2. Used to form future participles from verbs.

   ‎келу (kelu, “to come”) + ‎-ер (-er) → ‎келер (keler, “which will come”)

From Proto-Turkic *-er.

-ер • (-er)

1. Forms verbs meaning "to become (a given adjective)"

   ‎көк (kök, “blue”) + ‎-ер (-er) → ‎көгеру (kögeru, “to turn blue”)

   ‎жақсы (jaqsy, “good, well”) + ‎-ер (-er) → ‎жақсару (jaqsaru, “to become well”)

IPA^(key): [ ɛr]

From collective numerals suffix of Proto-Slavic *-er or *-or, which probably separated from stems of *četyr- /*četver- (*četvor-) /*četvьr- (чотири (čotyry)/четверо (četvero)/четвертий (četvertyj)) with further application to other numerals.

-ер • (-er)

1. Suffix appended to ordinal numerals to create a collective noun

   ‎п'ять (pʺjatʹ) + ‎-ер (-er) → ‎п'ятеро (pʺjatero)

Internationalism.

-ер • (-er) m

1. (neologism): -er^{<id:occupation>}, -er^{<id:agent noun>}, masculine agent suffix mimicking similar in numerous languages

   Synonyms: -ор (-or), -атор (-ator), -ар (-ar), -ач (-ač), -чик (-čyk), -ник (-nyk), -еник (-enyk), -щик (-ščyk), -чик (-čyk), -тель (-telʹ), -іст (-ist), -їст (-jist), -ік (-ik), -їк (-jik)

Separated from Proto-Indo-European *méh₂tēr (“mother”), *dʰugh₂tḗr (“daughter”), *ph₂tḗr (“father”).

-ер • (-er)

1. affix appended in declension of мати (maty, “mother”)

• Лев Миха́йлович Полю́га [Lev Myxájlovyč Poljúha] (2001), Словник українських морфем [Slovnyk ukrajinsʹkyx morfem, Dictionary of Ukrainian morphemes] (in Ukrainian), Львів [Lʹviv]: Світ [Svit], →ISBN
• “ер”, in Горох – Словозміна [Horokh – Inflection] (in Ukrainian)