I would say almost certainly, but I cannot find any satisfactory or plausible origin for the Gaelic. Wiktionary says nothing about where dìle comes from, and for the (presumably) related tuil it says
From Old Irish tuile, from the root tu- (“swell”). Cognate with Greek τύλος (týlos, “knob, weal”). The Old Irish root ól- (“to flood, abound”) gives Old Irish tólam (“flood”) and imról, foróil (“abundance”).
This is suspicious for several reasons. First there are no references. Secondly if you follow the link to the Old Irish it says nothing. Thirdly, the second part seems really confused.