Reconstruction:Proto-West Germanic/breustabain

This Proto-West Germanic entry contains reconstructed words 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 *breustabainą. Equivalent to *breust (“breast”) +‎ *bain (“bone”). Cognate with Icelandic brjóstbein, Swedish bröstben.

Noun

*breustabain n

breastbone, sternum

Inflection

Neuter a-stem
	Singular
Nominative	*breustabain
Genitive	*breustabainas
	Singular	Plural
Nominative	*breustabain	*breustabainu
Accusative	*breustabain	*breustabainu
Genitive	*breustabainas	*breustabainō
Dative	*breustabainē	*breustabainum
Instrumental	*breustabainu	*breustabainum

Descendants

Old English: brēostbān
- Middle English: brestbon, brust-bon, breoste-bon,
  - English: breastbone
Old Frisian: brustben, burstben
- Saterland Frisian: brustben
- West Frisian: boarstbien, boarstbonke
Old Dutch: [Term?]
- Middle Dutch: borstbeen
  - Dutch: borstbeen
Old High German: brustbein
- Middle High German: [Term?]
  - German: Brustbein