As a Hindi name
जीर्णि · jīrni · s.f.
Old age, infirmity, decay: digestion — Platts (1884), digital edition courtesy DSAL, University of Chicago, p. 413
As a Sanskrit word
Meaning
infirmity, decay
Verified derivationMultiple readings (4)Why this matches what you typed
The spelling you confirmed, जीर्णि, is itself a dictionary headword — no grammatical transformation stands between what you typed and the meaning above.
Dictionary citations
jīrṇi mfn. decrepit with age, ŚBr. iv; TBr. iii; ŚāṅkhBr. ii, 9
jīrṇi f. infirmity, decay, L.
digestion, W.
jīrṇi f. (-rṇiḥ) 1 Old age, infirmity, decay. 2 Digestion. E. jṝ to become old, ktin aff.
Alternative readings
More than one analysis survives full verification. That ambiguity is real, so we show every reading rather than pick one silently.
Caveats
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