Intubate

google

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late 19th century: from in-2 ‘into’ + Latin tuba ‘tube’ + -ate3.

wiktionary

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c. 1884, Back-formation from intubation.

etymonline

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intubate (v.)

1610s, "to form into tubes," from in- (2) "in" + Latin tuba "tube" (see tuba) + -ate (2). Medical sense is from 1887. Related: Intubated. Intubation "act of inserting a tube" (into an orifice) is from 1885.