reëxtend

• reextend
• re-extend

re- +‎ extend with a diaeresis applied.

• (UK) IPA^(key): /ɹi.ɛksˈtɛnd/

reëxtend (third-person singular simple present reëxtends, present participle reëxtending, simple past and past participle reëxtended)

1. Rare spelling of re-extend.
   • 1924, Marion Randall Parsons, William Frederic Badè, The Writings of John Muir, page 354:

     But the verge of a period beginning in cretaceous times may have a breadth of tens of thousands of years, not to mention the possible existence of conditions calculated to multiply and reëxtend both species and individuals.

   • 1943, [AUTHOR UNKNOWN], The Law Student, page #18:

     We desire now to reëxtend the invitation just reprinted from our first issue, and to reëmphasize the fact of our friendly attitude toward law students.

• extender