Origin: Latin suffix -ous
Vapourous has 4 different meanings across 1 category:
so thin as to transmit light
"a hat with a diaphanous veil"
"filmy wings of a moth"
"gauzy clouds of dandelion down"
"gossamer cobwebs"
"sheer silk stockings"
"transparent chiffon"
"vaporous silks"
Alternative form of vaporous