Reconstruction:Proto-West Germanic/kastannjā

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

Borrowed from Latin castanea.

Noun

*kastannjā f

Inflection

ōn-stem
	Singular
Nominative	*kastannjā
Genitive	*kastannjōn
	Singular	Plural
Nominative	*kastannjā	*kastannjōn
Accusative	*kastannjōn	*kastannjōn
Genitive	*kastannjōn	*kastannjōnō
Dative	*kastannjōn	kastannjōm, kastannjum
Instrumental	*kastannjōn	kastannjōm, kastannjum

Alternative reconstructions

*kastinnju

Reconstruction notes

Middle Germanic forms corrupted, if not displaced by Old French chastaigne.

Derived terms

*kastannjabaum
- Old English: ċiestenbēam
- Old Saxon: *kastanniabōm
  - Middle Low German: kastanienbôm, kastanntenbôm
    - German Low German: Kastanjenboom
- Old High German: kestinaboum, kestinnaboum

Descendants

Old English: ċisten, ċysten, *ċeasten, *ċiesten, *ċistene
- Middle English: chesteyne, chasteine, chasten, chasteyn, chaston, chestan, chestayn, chesten, chestein, chesteyn, chestyn, cheston, kesteyn (merged with Old French chastaigne)
  - English: chesten (obsolete)
    - ⇒ English: chestnut
      - → Middle Scots: chastnut (calque)
        Scots: chestnut
  - Middle Scots: chastan, chasten, chestane
Old Saxon: kestena, *kastannia
- Middle Low German: kastanie, kastannie, castanee, kastandie, karstânie, karstannie, karstandie, karstênie, karstênige
  - German Low German: Kastanje, Kristanje, Kastanigge, Kaschtanje, Kustanje
  - → Swedish: kastanj
    - → Finnish: kastanja
Old Dutch: *kestina
- Middle Dutch: castānie
  - Dutch: kastanje
Old High German: kestina, kestinna
- Middle High German: kestene, kesten
  - Alemannic German: Chestene
  - Bavarian: Kestn
  - German: Kästen, Kesten
  - ⇒ Middle High German: *keste (reanalyzed in the singular)
    - Bavarian: Kest, Kescht
      Cimbrian: khésta, khest (Luserna)
    - German: Käste, Keste
    - Luxembourgish: Käscht
    - Palatine German: Keschde