[escapefromboston]

So is it okay to spell Orange-utan without the hyphen? Sometimes I see it that way and sometimes I don’t.

[69ConvertibleFirebird]

Don't just remove the hyphen.

orangutan

One entry found for orangutan. Main Entry: orang·u·tan
Pronunciation: &-'ra[ng]-&-"ta[ng], -'ra[ng]-g&-, -"tan
Function: noun
Etymology: Bazaar Malay (Malay-based pidgin), from Malay orang man + hutan forest
: a largely herbivorous arboreal anthropoid ape (Pongo pygmaeus) of Borneo and Sumatra that is about 2/3 as large as the gorilla and has brown skin, long sparse reddish-brown hair, and very long arms

[verum ago]

So is it okay to spell Orange-utan without the hyphen? Sometimes I see it that way and sometimes I don’t.

I've never seen it spelled with an e or a hyphen.