The quality of being auspicious; the state of having favorable omens or promising circumstances.
From 'auspicious' + '-ness' (noun-forming suffix), from Latin 'auspex.' A formal abstract noun.
This noun lets you talk about abstract favorable vibes as a concrete concept—you're describing the 'auspiciousness' of a beginning, which is just a fancy way of saying everything seemed to be going well from the start.
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