(obsolete, now offensive) Russia

go back, extend back (in time), stretch back / advance against the flow of water; go upstream

go upstream / retrograde / trace back

foolish; stupid / (historical) Lu (state) (vassal state during the Zhou Dynasty of ancient China) / (dated) short form for Russia (魯西亜) / a surname

a land, a large place / a country in general, a region / a country as in a nation, a state / the office of emperor, the crown; affairs of state / a province of ancient Japan

history / the study of history

(archaic) antique, old-fashioned / (colloquial) ancient

ancient times, antiquity, remote ages

going upstream

to go upstream