THROUGHLY . This is the older spelling of ‘thoroughly.’ In mod. editions of AV [Note: Authorized Version.] we find both forms used, ‘thoroughly’ in Exodus 21:18 , 2 Kings 11:18 , and ‘throughly’ elsewhere; but in the original edition of 1611 the spelling is ‘throughly’ everywhere. There was no distinction in earlier Eng. between ‘through’ and ‘thorough,’ ‘throughly’ and ‘thoroughly.’ In the first ed. of AV [Note: Authorized Version.] Exodus 14:16 reads ‘the children of Israel shall goe on dry ground thorow the mids of the Sea.’