Lonnie

Diminutive +‎ -ie.

Lonnie

1. (US) A pet form of the male given name Alonzo.
2. A diminutive of the male given name Lon.
   • 2019 September 17, Edward Snowden, Permanent Record, New York, N.Y.: Metropolitan Books/Henry Holt and Company, →ISBN, pages 15–16:

     But the person I spied on the most was my father, Lon—or, as he was called in the Southern style, Lonnie—who'd commandeer the den into the wee hours.

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