Yes, some words that usually nouns can function as adjectives. That is true.
You could seek the help of a tutor to understand more about the class, and learn new things.
Answer:
A) Wisdom- Soph
B) Spider-Arachn
C) Small space- Claustr
D) Death- Necro
E) Heat- Therm
Explanation:
A) In Greek, Soph means knowledge or wisdom.
B) Arachnids are a class or group of anthropods like the spiders and scorpion family.
C) The fear of being in a small space is known as claustrophobia or if it's about a person, we say s/he is claustrophobic.
D) Anything relating to death or a dead body/corpse is termed necromancy. Necromancers are the practicers of necromancy or wizardry.
E) Anything related to heat is known as "therm", like for example thermos, thermometer etc.
