Pronoun
Whosoever.
Source: Webster's dictionaryWhoso neglects learning in his youth, loses the past and is dead for the future. Euripides
Whoso pulleth out this sword of this stone and anvil, is rightwise King born of all England. Thomas Malory
Whoso would be a man, must be a nonconformist. Ralph Waldo Emerson
Whoso is tired of happy days, let him take a wife. Dutch Proverb
Whoso hunteth with cats will catch nothing but rats. Dutch Proverb
Whoso hath land hath war. French Proverb