Definition: adj 1 : having a smooth rich flow 2 : filled with something (as honey) that sweetens

Quotation:

His father died not long ago at 93, he says. “You have to think about him” on this day, he says. And the slightest drop in that mellifluous voice tells you it’s time to talk about something else.

- from an article in The New York Times

Etymology: Middle English mellyfluous, from Late Latin mellifluus, from Latin mell-, mel honey + fluere to flow; akin to Gothic milith honey, Greek melit-, meli

Flowing like honey, literally. I like it.