Does the word "recommend" and "commend" are related?

Native speaker’s answer
Rebecca
These two verbs have different meanings, but can be considered to be somewhat related. "Commend" means to praise, congratulate, or reward, whereas "recommend" means to give commendation to or positively suggest something. They cannot be used interchangeably, so please make sure you are using the verb appropriate to the context. Ex: I think this new technology is quite commendable. => praiseworthy Ex: I would like to recommend this restaurant for your birthday party. => suggest