Artificial intelligent assistant

to-while

to-ˈwhile, conjunctive adv. Obs.
  [f. to prep. 7 + while n., q.v. 2 c.]
  During the time that, while.

c 950, c 1000, c 1250, 13.. [see while n. 2 c.] c 1330 R. Brunne Chron. Wace (Rolls) 4141 To whyle þe kyng & his cosyns I loue loken ar þer lynes.

Oxford English Dictionary

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