early 15c., from Old French viscosite (13c.) or directly from Medieval Latin viscositatem (nominative viscositas), from Late Latin viscosus (see viscous).
Entries linking to viscosity
viscous adj.
late 14c., from Anglo-French viscous and directly from Late Latin viscosus "sticky," from Latin viscum "anything sticky, birdlime made from mistletoe, mistletoe," probably from PIE root *weis- "to melt away, flow" (used of foul or malodorous fluids); see virus.