He moved with his family to Bergen in 1907 and returned to Kristiania in 1915.
He was a great-grandson of Ludvig Vibe, and a half-brother of Inger Alver Gløersen.
[1] Høst took his examen artium in 1918, and graduated from the Royal Frederick University with the cand.philol.
He worked at the Royal Frederick University from 1930, but was not promoted to lecturer until 1937.
Together with his colleagues Peter Rokseth (1891-1945) and Charles Gobinot (1891-1954), he formed part of the French group at the university during the 1930s.