Emily Dickinson Lexicon

THUS, adv. [Sax. thus; D. dus.]

1. In this or that manner; on this wise; as, thus saith the Lord; the Pharisee prayed thus. Thus did Noah, according to all that God commanded him. Gen. vi.
2. To this degree or extent; as, thus wise; thus peaceable. Holyday. Thus far extend, thus far thy bounds. Milton.
3. In the phrase, thus much, it seems to be an adjective, equivalent to this much.