&gt; Welsh is actually quite different from the other two. It uses lots of ll and ff and it uses w as a vowel (e.g., cwm).<p>Welsh also uses a circumflex accent to extend any of the vowels, and since both &#x27;w&#x27; and &#x27;y&#x27; are vowels in Welsh (leading to many jokes by English speakers about words with no vowels) they can have the circumflex accent too. I&#x27;ve had problems in the past finding the alt-codes to generate w or y with a circumflex accent - so those may be unique to Welsh.<p>From <a href="http:&#x2F;&#x2F;symbolcodes.tlt.psu.edu&#x2F;bylanguage&#x2F;welsh.html" rel="nofollow">http:&#x2F;&#x2F;symbolcodes.tlt.psu.edu&#x2F;bylanguage&#x2F;welsh.html</a> :
&gt; Because of the writing system, Welsh places accents on the letters w (phonetic &#x2F;u&#x2F;) and y (phonetic &#x2F;ɨ&#x2F; or &#x2F;i&#x2F;), which is very unique in languages of the world. These symbols require Unicode support apart from that of other Western European languages.