From Middle English soly, sooly, soolly, equivalent to sole +‎ -ly.

• (Received Pronunciation) IPA^(key): /ˈsəʊl.li/
• (US) IPA^(key): /ˈsoʊl.li/
• Rhymes: -əʊlli

• Audio (US):

  (file)

solely (not comparable)

1. Alone; exclusively.

   The new chef was solely responsible for attending the grill.

   • 2012 November 20, Nina Bernstein, “Storm Bared a Lack of Options for the Homeless in New York”, in The New York Times‎^[1], archived from the original on 4 November 2023:

     This week, officials closed all evacuation centers but two on Staten Island. Now they plan to rely solely on hotels, even as they brace for a new wave of people displaced from storm-damaged housing where they are facing winter without heat or hot water.

• entirely, wholly; see also Thesaurus:solely

• Solley

Franco-Provençal Wikipedia has an article on:

solely

Wikipedia ^frp

• chlo, chle, chelo, chlô, shèlë, chèlà, chówé

Inherited from Vulgar Latin *sōliculum.

solely m (plural solelys) (ORB, broad)

1. sun

• soleil in DicoFranPro: Dictionnaire Français/Francoprovençal – on dicofranpro.llm.umontreal.ca
• solely in Lo trèsor Arpitan – on arpitan.eu