Nouns

First declension

The first declension (D1) occurs for all nouns ending with “a”. Regardless of gender, the nouns decline as following.

	Singular	Plural
Nominative	a	ae
Genitive	ae	ar
Dative	ae	is
Accusative	am	äs
Ablative/Instrumental	ä	īs
Vocative	a	än

Second declension

The second declension (D2) is for all nouns ending with “r” and some nouns ending with “us”. The nouns decline as follows:

	Singular	Plural
Nominative	us/r	i/en
Genitive	ī	or
Dative	ō	is
Accusative	um	ös
Ablative/Instrumental	ō	ön
Vocative	e/r	i/en

Third declension

The third declension (D3) is for all nouns ending with “um”. The nouns decline as follows:

	Singular	Plural
Nominative	um	a
Genitive	ī	or
Dative	ō	is
Accusative	um	ös
Ablative/Instrumental	ō	ön
Vocative	um	a

Fourth declension

The fourth declension (D4) is for nouns with i-stems, i.e. ends with i+a letter. The masculine and neuter nouns decline as follows. (i+vowel is usually appended with n before adding the endings, whereas “-is” is removed).

	Singular	Plural
Nominative	n/a	es
Genitive	is	um
Dative	i	ib
Accusative	em	es
Ablative/Instrumental	ēm	öb
Vocative	n/a	es

The feminine nouns decline in a similar way, as follows.

	Singular	Plural
Nominative	n/a	ia
Genitive	is	um
Dative	i	ib
Accusative	em	es
Ablative/Instrumental	ēm	öb
Vocative	n/a	es

Fifth declension

The fifth declension (D5) is for remaining nouns ending with “us” that are not included in the D2. The masculine and neuter nouns decline as follows:

	Singular	Plural
Nominative	us	ua
Genitive	ü	uum
Dative	ui	iß
Accusative	um	üß
Ablative/Instrumental	üs	ün
Vocative	us	ua

Sixth declension

The sixth declension (D6) is for nouns ending with “e” or “es”. The nouns decline as follows.

	Singular	Plural
Nominative	e/es	es
Genitive	ei	erß
Dative	ei	ebs
Accusative	em	es
Ablative/Instrumental	e	en
Vocative	e/es	es

Gerunds

Gerunds are a form of verb used like a noun. In Fleutespräch, it is the infinitive form (declined).

	Singular
Nominative	en
Genitive	ens
Dative	enß
Accusative	em
Ablative/Instrumental	emß
Vocative	en

Alternatively, it is also possible to form a countable noun using stem+ung formula (e.g. das Arbeitung). These words decline like this:

	Singular	Plural
Nominative	ung	ungen
Genitive	unes	unger
Dative	unge	ungß
Accusative	ungen	ing
Ablative/Instrumental	unge	ungß
Vocative	ung	ungen

The en and the ung terminations signify slightly different things. The en ending signifies the action itself, while the ung ending corresponds to something more concrete (e.g. das Edifizen and das Edifizung).