Inside the Universes

Words with a similar base: spartan

[spartan.n.01] as in: a resident of Sparta

[spartan.a.01] as in: of or relating to or characteristic of Sparta or its people

[spartan.s.01] as in: resolute in the face of pain or danger or adversity

[severe.s.04] as in: unsparing and uncompromising in discipline or judgment; - H.G.Wells

[ascetic.s.01] as in: practicing great self-denial; - William James

for no other reason than that you would rather not do it
a desert nomad's austere life
a spartan diet
a spartan existence