Definition of abacost in English:

abacost

(also abacos)

noun

  • In the Democratic Republic of the Congo (formerly Zaire): a man's suit consisting of a short-sleeved collarless jacket and loose trousers.

Origin

1970s; earliest use found in The New York Times. From African French (Congo) abacost, abacos, apparently shortened from the French slogan à bas le costume, lit. ‘down with the (Western) suit’ from à bas down, downwards + le, masculine definite article + costume suit.

Pronunciation:

abacost

/ˈabəkɒst/