What's the difference between nadder and padder?

Nadder

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Definition:

• (n.) An adder.

Example Sentences:

• (1) Constructions like "A nadder" or "Mine napron" were so common the first letter was assumed to be part of the preceding word.

Padder

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Definition:

• (n.) One who, or that which, pads.
• (n.) A highwayman; a footpad.
• (n.) One who, or that which, paddles.

Example Sentences: