孚
フ, たまご, はぐく.む

sincere, nourish, encase

JLPT0 G13 S0 F5000

As per 爪# (pick/pluck) + 子 child → scoop up and envelop a child in protection (compare 保) → *encase*; *nourish*. Also, *brood over eggs*. *Sincere* is a borrowed meaning.

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