forescent

To detect the scent of (something) before it is present.

birds and wild animals forescent a storm, or an earthquake

[…] the white goose, The saviour of the Roman citadel, Forescents afar the odour of mankind.

To detect or become aware of (something) in advance.

1872, Henry Norman Hudson, Shakespeare: His Life, Art, and Characters, Boston: Ginn & Company, Othello, the Moor of Venice, p. 462, the sagacity with which Iago feels and forescents his way into Roderigo

1915, Frederick Goodyear, letter to F.W. Leith Ross in Letters and Remains: 1887-1917, London: McBride, Nast, 1920, p. 94, Possibly we instinctively forescented the war.

A scent that indicates something in advance.

an appalling forescent of his own near approaching discomfiture

The patriarchs and prophets inhaled the sweet odour of Christ, Who was preordained to be born and to die in the flesh; yet they did not then give forth the same odour, because they could not exhibit in the flesh Him of Whom they had a fore-scent in the spirit.