nounpl. gnus or
Origin of gnuFrench gnou from Xhosa ngu
Origin of gnuProbably from Dutch gnoe from Xhosa i-ngu white-tailed gnu from San !nu black wildebeest
brindled gnu, also known as the blue wildebeest
Taken from Nama, likely onomatopoeic of the grunt-type noise of the gnu.
gnu - Computer Definition
(GNU's Not Unix) A Unix-like operating system developed by the free software movement starting in 1984. In 1992, the almost-complete GNU system was combined with the Linux kernel, producing the GNU/Linux system. The GNU Project developed many of the core programs in GNU, but also included available free software such as the X Window System and TeX. See GNU Project, GNU/Linux, Free Software Foundation, free software and Linux.