tolu
Concise Oxford English Dictionary © 2008 Oxford University Press:
tolu /təˈluː, ˈtəʊluː/
▶noun a fragrant brown balsam obtained from a South American tree, used in perfumery and medicine.
– origin C17: named after Santiago de Tolú in Colombia, from where it was exported.
'tolu' also found in these Oxford entries:

