出典:Wiktionary
出典:『Wiktionary』 (2025/10/11 21:02 UTC 版)
From 中期英語 foster, from 古期英語 fōstor (“food, sustenance”), from Proto-West Germanic *fōstr, from Proto-Germanic *fōstrą (“nourishment, food”).
Cognate with Middle Dutch voester (“nursemaid”), Middle Low German vôster (“food”), Old Norse fóstr (“nurturing, education, alimony, child support”), Danish foster (“fetus”), Swedish foster (“fetus”).
foster (not comparable)
foster (countable and uncountable, plural fosters)
foster (third-person singular simple present fosters, present participle fostering, simple past and past participle fostered)
Modern English makes a distinction between fostering (which is implied to be temporary or informal) and adopting (which is permanent and makes the child legally recognized as part of the family). In older usage the two terms were more interchangeable.
Strong a-stem:
| singular | plural | |
|---|---|---|
| nominative | fōster | fōstru |
| accusative | fōster | fōstru |
| genitive | fōstres | fōstra |
| dative | fōstre | fōstrum |
Inherited from 古期英語 fōster, from Proto-West Germanic *fōstr, from Proto-Germanic *fōstrą; reinforced by 古期英語 fōstre (“fosterer”). The vocalism is due to regular shortening before a three-consonant cluster (in the 古期英語 oblique stem fōstr-).
foster (plural *fostres)
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扶養すること
to maintain something
育児する
にごらせる
安産する