Reconstruction:Proto-West Germanic/þaismijan

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 *þaisimō (“yeast”) +‎ *-jan.

Verb

*þaismijan

to leaven

Inflection

Class 1 weak
Infinitive	*þaismijan
1st sg. past	*þaismidā
Infinitive	*þaismijan
Genitive infin.	*þaismijannjas
Dative infin.	*þaismijannjē
Instrum. infin.	*þaismijannju
Indicative	Present	Past
1st singular	*þaismiju	*þaismidā
2nd singular	*þaismisi	þaismidēs, þaismidōs
3rd singular	*þaismiþi	þaismidē, þaismidā
1st plural	*þaismijum	*þaismidum
2nd plural	*þaismiþ	*þaismidud
3rd plural	*þaismijanþ	*þaismidun
Subjunctive	Present	Past
1st singular	*þaismijē	*þaismidī
2nd singular	*þaismijēs	*þaismidī
3rd singular	*þaismijē	*þaismidī
1st plural	*þaismijēm	*þaismidīm
2nd plural	*þaismijēþ	*þaismidīd
3rd plural	*þaismijēn	*þaismidīn
Imperative	Present
Singular	*þaismi
Plural	*þaismiþ
	Present	Past
Participle	*þaismijandī	*þaismid

Descendants

Old Dutch: *thēsmen
- Middle Dutch: dêsemen
  - Dutch: desemen
Old High German: deismen
- Middle High German: deismen
  - German: deisamen