0 to spoil (something) by touching it or bringing it into contact with something bad or rotten -- guastare, contaminare
1 to affect (someone or something) with something evil or immoral; to corrupt -- corrompere, guastare
2 a mark or trace of something bad, rotten or evil -- ombra, macchia
the taint of decay.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Possiamo completarlo passo dopo passo, indipendentemente dalla lunghezza della strada, e non può essere completato, per quanto breve sia la strada, se non segni nemmeno la tua impronta.