Reconstruction:Proto-West Germanic/fastu

This Proto-West Germanic entry contains reconstructed terms and roots. As such, the term(s) in this entry are not directly attested, but are hypothesized to have existed based on comparative evidence.

Proto-West Germanic

Etymology

From Proto-Germanic *fastō, *fastǭ. Equivalent to *fastēn (“to fast”) +‎ *-u. Cognate with Old Norse fasta.

Noun

*fastu f

1. fast, fasting
2. (Christianity) Lent

Inflection

ō-stem
	Singular
Nominative	*fastu
Genitive	*fastā
	Singular	Plural
Nominative	*fastu	*fastō
Accusative	*fastā	*fastā
Genitive	*fastā	*fastō
Dative	*fastē	*fastōm, *fastum
Instrumental	*fastu	*fastōm, *fastum

Alternative reconstructions

• *fastā

Descendants

• Old Frisian: feste
  • Saterland Frisian: festa
• Old Saxon: fasta
  • Middle Low German: vaste, vast
• Old Dutch: *fasta
  • Middle Dutch: vaste
• Old High German: fasta
  • Middle High German: vaste, faste
• → Proto-Slavic: *postъ (see there for further descendants)