Definition of well-bottomed in English:
well-bottomed
adjective
rare
Having a good foundation, firmly based; (of a person or character) steadfast.
Origin
Early 17th century; earliest use found in John Preston (1587–1628), Church of England clergyman. From well + bottomed.
Pronunciation
well-bottomed
/ˌwɛlˈbɒtəmd/