pIvghor — Klingon Dictionary

chaq tampu'. chaq romuluSnganpu'vaD pIvghor cham lunobpu' tlhInganpu'
possibly in exchange for Warp Drive technology. S33

pIvghor yIchu' 'ej pentatlh wej yIjaH
Warp to Pentath III. MKE

pIvghor yIchu' 'ej qo'rIDan yIjaH
Warp to Coridan. MKE

pIvghor yIchu' 'ej Duj Sumqu' yIjaH
Warp to the nearest vessel. MKE

pIvghor yIchu' 'ej HoSHal Sumqu' yIjaH
Advance to the nearest energy source. MKE

(STE 213): Nacelle: "In starship design, a large outboard structure that houses a warp drive engine. Nacelles generally incorporate powerful subspace field generation coils and sometimes have Bussard collectors to gather interstellar hydrogen. Most Federation starship designs feature two warp engine nacelles mounted parallel to the axis of flight."

Klingons may call their nacelles pIvchem lIngwI' DaHmey "warp field generation arrays" or pIvghor lIngwI' "warp generator":

pIvchem lIngwI' DaHmey: cha'
Warp Field Generation Arrays - 2 (KPoB)

pIvchem SeHwI': cha'
Warp Field Controller - 2 (KPoB)

(STE [page?]): Deuterium was also used as one of the reactants in the matter/antimatter reaction system in those ships' warp drive. The deuterium was the matter, and anti-hydrogen served as the antimatter. (TNG 'Relics')

(TKW 190): The prisoners on Rura Penthe ... mine dilithium, required for warp propulsion systems.

(KGT 204): either cha'pujqutmey or dilithium crystals will work in a warp drive system