The story
From zan- (of unknown origin) + -amivir (“neuraminidase inhibitor”).
Etymology from Wiktionary, CC BY-SA 4.0.
zanamivir
Today it means: An antiviral drug C₁₂H₂₀N₄O₇ that is a neuraminidase inhibitor taken by oral inhalation in the treatment and prophylaxis of Influenzavirus. Full definition →