ratting (root: rat)

rat=ting

WORDNET DICTIONARY

ratting(n = noun.communication) informing - to furnish incriminating evidence to an officer of the law (usually in return for favors); Array

is a kind of disclosure, revealing, revelation

Derived form verb rat₆

ratting, n.

The conduct or practices of one who rats. See Rat, v. i., 1. Sydney Smith. [1913 Webster]
The low sport of setting a dog upon rats confined in a pit to see how many he will kill in a given time. [1913 Webster]

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