■ noun
1》 the quality of being careful and not wasteful with money and other resources.
2》 US another term for savings and loan .
3》 a plant which forms low-growing tufts of slender leaves with rounded pink flower heads, growing chiefly on sea cliffs and mountains. [ Armeria maritima .]
Origin
ME (in the sense 'prosperity'): from ON, from thrífa 'grasp, get hold of'; cf. thrive .