different between paneless vs pangless

English

pane +? -less

paneless (not comparable)

pang +? -less

pangless (comparative more pangless, superlative most pangless)

Without a pang; painless.
- 1811, Lord Byron, To Thyrza
  And didst thou not, since Death for thee / Prepared a light and pangless dart, / Once long for him thou ne'er shalt see, / Who held, and holds thee in his heart?

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