It should have been an omen: His Tonight Show felt off-topic before it started.
At times, it seemed Leonard was awaiting a portent or an omen.
Some view is as an omen of dread, of blood, of war, or of victory.
The Japan Times on March 6, 2010, reported that in folklore the fish comes to the beach as an omen of an earthquake.
The color has also been used to forebode an omen or a threat.
Its very failures have come from its inherent greatness; they are the proof of great capacities, the omen of a greater future.
The dead quiet of the house also oppressed him—like a voice—an omen.
By delay I read an omen of the desire of the loiterers to avoid the enemy.
If they come up odd the omen is favourable, and if even it is bad.
What sort of omen was it that had caused me to fall into it likewise?
1580s, from Latin omen "foreboding," from Old Latin osmen, of unknown origin; perhaps connected with the root of audire "to hear" [OED] or from PIE *o- "to believe, hold as true" (cf. Greek oiomai "I suppose, think, believe").