IPA: /ˈtuːθsəm/
KK: /ˈtuːθsəm/
Something that is very tasty or delicious, often used to describe food that is enjoyable to eat.
The chef prepared a toothsome dessert that everyone loved.
Toothsome → It is formed from "tooth" (from Old English *toþ*, meaning the hard structure in the mouth used for biting and chewing) and "-some" (meaning characterized by or having the quality of). The word "toothsome" means having the quality of being delicious or appetizing, as if it is good enough to be eaten with teeth.
Think of something that is so delicious that it makes you want to use your 'teeth' ('tooth') to enjoy it — that's why 'toothsome' means tasty.