And in Cornish, klywes, klewes, clewes, klowes, clowes, clêwes, clôwes depending on the orthography you use.
And, in Irish, ear is 'cluas', which looks a lot more similar to the Brthyonic words for to hear.
Wonder if its any relation to the old term "clouting somebody about the ear"..
The OED thinks not:
"[From] Old English clūt (in the sense ‘a patch or metal plate’); related to Dutch kluit ‘lump, clod’, also to cleat and clot. The shift of sense to ‘heavy blow’, which dates from late Middle English, is difficult to explain; possibly the change occurred first in the verb (from ‘put a patch on’ to ‘hit hard’)."