throughly

• thruly (nonstandard, U.S.A.)

From through +‎ -ly.

• (UK, US) IPA^(key): /ˈθɹuːli/

throughly (comparative more throughly, superlative most throughly)

1. (now rare, archaic) Thoroughly, completely.
   • 1590, Edmund Spenser, “Book II, Canto VII”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie, →OCLC:

     The whiles he steru'd with hunger and with drouth / He daily dyde, yet neuer throughly dyen couth.

   • 1610–1611 (date written), William Shakespeare, “The Tempest”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act III, scene ii]:

     The next advantage / Will we take throughly.

   • 1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC, Psalms 51:2:

     Wash me throughly from mine iniquity, / And cleanse me from my sin.