1) Adverb in a contract 2) Adverb in contracts 3) Besides of old 4) In that direction 5) Legalese 6) Legalese adverb 7) Regarding that 8) Thither 9) To it 10) To that Found on https://www.crosswordclues.com/clue/thereto
There·to' adverb 1. To that or this. Chaucer. 2. Besides; moreover. [ Obsolete] Spenser. « Her mouth full small, and thereto soft and red.» Chaucer. Found on http://www.encyclo.co.uk/webster/T/41