A small or diminutive blanket, or a blanket used for a specific purpose (like wrapping a baby).
From blanket + -it (diminutive suffix). The -it suffix creates smaller versions of words, similar to how 'bit' comes from 'bite' or how many languages use diminutive endings to show something is smaller or endearing.
Diminutive suffixes like -it are how parents and caregivers have always talked to babies—a 'blankit' is the kind of word a grandmother would use because it sounds gentle and small, matching how you'd wrap a tiny infant, which is probably why it never became standardized but everyone understands it anyway.
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