Definitions

1. pronoun

used in the past as a less formal or poetic way of saying ‘who’

“He that is without sin among you, let him first cast a stone, said whosoever stood before them.”

2. noun

a person or people, especially in biblical or poetic contexts

“Whoso is able to keep these commandments shall be blessed in heaven.”

3. conjunction

used to introduce a clause that gives more information about what has been said

“Whoso is able to bear the burden of this knowledge shall be given more.”