Definition of "prahu"

Year after year the fleets of mat-sailed prahus left the islands in the Arafura Sea - the loveliest tropical scenery I know - and gracefully and quietly, as is their wont, floated with the monsoon to those wild and uncivilizied shores, bartering with the aboriginals for beche-de-mer, tortoise-shell, and the natural products of the jungle.

1887, Harriet W. Daly, Digging, Squatting, and Pioneering Life in the Northern Territory of South Australia, page 268