1
Stage 1 of 3
influentia
Medieval Latin · medieval
"influence, especially of the stars"
meaning "influence", especially astrological influence believed to cause disease
2
Stage 2 of 3
influenza
Italian · 1500s-1600s
"an epidemic illness"
applied to epidemics attributed to unseen astrological or environmental influence
3
Stage 3 of 3
influenza
English · 1700s
"a contagious viral respiratory illness"
adopted directly from Italian for the viral respiratory illness
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