a familiar or diminutive form of a name; a pet name
the most prominent name in this regard is Offa, very clearly a full name here rather than a hypocorism

Connections NYT: Hints For Today's Puzzle, Wed, Jan 14

NYT Strands Today - Hints, Spangram & Answers for January 14

Today’s Wordle Answer Jan 14 #1670- NYT Wordle Hints & Updates

Today's NYT Pips Hints & Answers

Today's NYT Capture Hints & Answers

NYT Mini Crossword Answers Today - The Mini for Jan 14 Solved

Connections NYT: Hints For Today's Puzzle, Wed, Jan 14

NYT Strands Today - Hints, Spangram & Answers for January 14

Today’s Wordle Answer Jan 14 #1670- NYT Wordle Hints & Updates

Today's NYT Pips Hints & Answers

Today's NYT Capture Hints & Answers

NYT Mini Crossword Answers Today - The Mini for Jan 14 Solved