Bumi
Buumi (bambance-bambance masu yawa : Buumy, Bumy, Bumi, da dai sauransu) ya kasance lakabin sarauta na Serer a cikin Serer pre-colonial Kingdoms of Sine, Saloum da kuma baya Baol.  Duk waɗannan masarautun Serer kafin mulkin mallaka yanzu suna cikin Sanagal na zamani. Koyaya, Gambiya ta yau, ana kiranta Lower Saloum kuma tsohuwar mulkin mallaka na Masarautar Saloum. Bumi ya kasance dan gidan sarauta ne. Shi ne farkon wanda ya gaji sarautar Maad a Sinig (Sarkin Sine) ko Maad Saloum (sarkin Saloum).  A wasu lokuta, Buumi na iya yin aiki a matsayin mai mulki idan sarki ya zama ƙarami, kamar yadda ya faru da Maad a Sinig Ama Joof Gnilane Faye Joof, wanda aka naɗa kawunsa mai mulki har sai Maad Ama Joof ya girma.  A cikin Sine kafin mulkin mallaka, Buumi yakan zauna a Somb Rongodior.  A lokuta da dama, Maad a Sinig ne ya zaɓe shi a matsayin magajinsa, duk da haka, Babban Jaraff da Majalisar Zaɓe mai daraja ta gaba daya sun yanke shawarar wane dan gidan sarauta ne zai gaje gadon sarauta. Lokacin da Maad a Sinig ya mutu ba tare da nada Buumi nasa ba, kamar yadda ya faru da Maad a Sinig Mbackeh Neb Njie, "thilas" (na biyu a kan karagar mulki) na iya gaje shi kamar yadda ya faru da Maad a Sinig Kumba Ndoffene Fa Ndeb. Joof. 

Buumi ya kasance mutum mai mahimmanci a cikin masarautun Serer. Suna da nasu sojojin sannan kuma sun jagoranci rundunar sojojin kasar a lokutan yaki. A Yaƙin Fandane-Thiuthioune (18 Yuli 1867) wanda kuma aka sani da Yaƙin Somb,  Buumi Somb ya umarci sojojin gabashin Sine.  A cikin Masarautar Saloum, wacce ke da tsarin siyasa mai kama da Masarautar Sine, Buumis biyu mafi mahimmanci sune. : Buumi Kaymor (Buumi na Kaymor) da Buumi Mandak (Buumi na Mandak). Dukansu sun zauna a Kaymor da Mandak (a cikin Saloum), bi da bi. A cikin Sine, akwai kuma Buumi Nguess (Buumi na Nguess ) da Buumi Ndidor (Buumi na Ndidor).  Ko da yake dukkansu manyan mutane ne, bai kamata a ruɗe su da "Buumi" (magajinsu ba).

Manazarta 
(in French) Sarr, Alioune, Histoire du Sine-
Saloum . Introduction, bibliographie et Notes
par Charles Becker, BIFAN, Tome 46, Serie B,
n° 3-4, 1986–1987. pp 37-39