assoil
verb
as·soil ə-ˈsȯi(-ə)l 
assoiled; assoiling; assoils
transitive verb
1
archaic : absolve, pardon
2
archaic : acquit, clear
3
archaic : expiate
assoilment
ə-ˈsȯi(-ə)l-mənt
noun archaic 
Word History
Etymology
Middle English, from Anglo-French assoilé, past participle of assoudre to absolve, from Latin absolvere
First Known Use
13th century, in the meaning defined at sense 1