different between wastrel vs boondoggler

English

1847, waste +? -rel (pejorative).

wastrel (countable and uncountable, plural wastrels)

(countable, dated) One who is profligate, who wastes time or resources extravagantly.
- 1929, Virginia Woolf, A Room of One's Own, Penguin Books, paperback edition, page 22
  Mary's mother - if that was her picture - may have been a wastrel in her spare time (she had thirteen children by a minister of the church), but if so her gay and dissipated life had left too few traces of its pleasures on her face.
(countable, obsolete) A neglected child.
(uncountable, obsolete) Refuse; rubbish.

boondoggle +? -er

boondoggler (plural boondogglers)

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