• procss,
• proofe,
• proovs,
• provs,
• proff,
• proofen,
• protors,
• proifts,
• prrof,
• provds,
• proift,
• proffs,
• proft,
• proufe,
• profi,
• prouf,
• prooves,
• proofes,
• proofits,
• prooff

• profusion,
• profusely,
• prophesy,
• profuse,
• proboscis,
• props,
• professed,
• proviso,
• prophase,
• propes,
• provisory,
• professor,
• propose,
• proposal,
• probasco,
• Provos,
• provost,
• proposed,
• profess,
• proposer,
• probst,
• propst,
• provision.

The adjective form of the word "proofs" would be "proven".