/ stægˈneɪt; NAmE ˈstægneɪt/ verb [ v ]
1.
to stop developing or making progress :
Profits have stagnated.
I feel I'm stagnating in this job.
2.
to be or become stagnant :
The water in the pond was stagnating.
► stag·na·tion / stægˈneɪʃn; NAmE / noun [ U ]:
a period of economic stagnation
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WORD ORIGIN
mid 17th cent.: from Latin stagnat- settled as a still pool, from the verb stagnare , from stagnum pool.