A student that grew up with Koyaga variety of Jula at home recently wrote in with a good question, so I am sharing it here for future reference for others:
For the verb “dayɛlɛ” [‘open’] is there any jula form close to “daka” ?
Here’s my response:
The standard Jula/Bambara form is “dayɛlɛ” which is a compound verb that comes from da ‘entry; door; mouth’ and k’à yɛlɛ ‘to open sth’. The form “daka” makes sense though because in Maninka “k’à ka” means to ‘to open sth’. I am used to hearing it with causative prefix la- (e.g., “Da laka!” = ‘Open the door’; Lit. “Make open the door”).