engrosser

transitive verb

1. 1. to write out in large letters of a kind once used for legal documents
   2. to make a final fair copy of (esp. a legislative bill)
2. to express formally or in legal form
3. to take the entire attention of; occupy wholly; absorb: engrossed in a book
4. Archaic
   1. to buy all of so as to monopolize
   2. to take or require all of

Origin: ME engrossen < OFr engrosser, to acquire in large quantity (< en-, in + gros, large < L grossus) & engroissier, to become thick < en- + groisse, thickness < VL *grossia < L grossus: see gross