An 8 letter word out of methematician is "thematic." It is straightforward, and requires no rearrangement of letters.
The word is folktale.
Several:imponingminoringmourningprimpingquippingquoiningumpiring
Kawasaki
testiest
sextets
Disaster, diasters, disrates
Armchair is an 8 letter word. The 7th letter is i.
There is no 9-letter food word, in fact no 9-letter words. The longest word is attracts (8 letters).
combine them with a letter on the board to make an 8 letter word
Decipher.
an 8 letter word for wealthy is ....... affluent
An 8 letter word for gifts would be: presents