whomst

-st (English)

Excrescent suffix (adding sound but largely not changing the meaning). Marks ordinals written in digits when the final term of the spelled number is "first" (archaic) Verb suffix for the second-person singular;.

whom (English)

Him; her; them (used as a relative pronoun to refer to a previously mentioned person or people.). What person or people; which person or people, as the object of a preposition.. What person or people; which person or people, as the object of a verb.

whomst (English)

(internet slang, humorous). (nonstandard) rare form of .