-ost

See also: ost, Ost, OST, ôt, öst, øst, osť, and -osť

Czech

Etymology

Inherited from Old Czech -ost, from Proto-Slavic *-ostь; compare Old Church Slavonic -ость (-ostĭ).

Suffix

-ost f (noun-forming suffix)

1. -ness: from adjectives, forms nouns indicating a property

Declension

Declension of -ost (i-stem feminine)

	singular	plural
nominative	-ost	-osti
genitive	-osti	-ostí
dative	-osti	-ostem
accusative	-ost	-osti
vocative	-osti	-osti
locative	-osti	-ostech
instrumental	-ostí	-ostmi

Derived terms

Czech terms suffixed with -ost

Further reading

• -ost in Slovník afixů užívaných v češtině, 2017

Old English

Pronunciation

• IPA^(key): /ost/

Etymology 1

Alternative forms

• -ast, -est, -ust

Suffix

-ost

1. Used to form superlative adjectives and adverbs

   ‎dēop (“deep”) + ‎-ost → ‎dēopost (“deepest”)

   ‎nytt (“useful”) + ‎-ost → ‎nyttost (“most useful”)

Declension

Declension of -ost — Weak only

Singular	Masculine	Feminine	Neuter
Nominative	-osta	-oste	-oste
Accusative	-ostan	-ostan	-oste
Genitive	-ostan	-ostan	-ostan
Dative	-ostan	-ostan	-ostan
Instrumental	-ostan	-ostan	-ostan
Plural	Masculine	Feminine	Neuter
Nominative	-ostan	-ostan	-ostan
Accusative	-ostan	-ostan	-ostan
Genitive	-ostra, -ostena	-ostra, -ostena	-ostra, -ostena
Dative	-ostum	-ostum	-ostum
Instrumental	-ostum	-ostum	-ostum

Etymology 2

Suffix

-ost

1. Alternative form of -est

Serbo-Croatian

Etymology

Inherited from Proto-Slavic *-ostь; compare Old Church Slavonic -ость (-ostĭ).

Suffix

-ost (Cyrillic spelling -ост)

1. Appended to adjectives and verbs to create a feminine noun, usually denoting a feature or quality. Similar to -oća.

Derived terms

Serbo-Croatian terms suffixed with -ost

Slovene

Etymology

From Proto-Slavic *-ostь.

Pronunciation

• IPA^(key): /-ɔst/, /-óːst/

Suffix

-ost or -ọ̑st f

1. Forms abstract nouns from adjectives, denoting a quality.

Derived terms

Slovene terms suffixed with -ost