Examples:
grim
determination
grim
necessity
Russia's
final
hour,
it
seemed,
approached
with
inexorable
certainty
relentless
persecution
the
stern
demands
of
parenthood
relentless (English)
├── -less (English)
│ └── -leas (Old English (ca. 450-1100))
│ └── leas (Old English (ca. 450-1100))
└── relent (English)
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