foster up
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
To raise up (something); to foster, nurse, increase or strengthen (something).
Register: dated
Where it’s used:
Used
American English
Examples
He fostered up their anger at the king's actions.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “foster up” mean?
To raise up (something); to foster, nurse, increase or strengthen (something).
Is “foster up” formal or informal?
foster up is generally dated.