Mattath is another derivative of natan (H5414, to give), closely related to mattan (H4976). It appears 5 times, most notably in Ecclesiastes where Qohelet reflects on gifts from God. The form emphasizes the thing given — the gift itself as an object of reception from a giver greater than oneself.
In Ecclesiastes, mattath appears in the context of the Teacher's conclusion that enjoyment of life's simple goods — food, drink, work, relationship — is itself a gift from God. This is not hedonism but sacramental theology: the creation is to be received with open hands, not grasped. The ability to enjoy the gift is itself a gift. This theology of receivership runs from Genesis ("God gave") through the NT: "What do you have that you did not receive? And if you did receive it, why do you boast as though you did not?" (1 Corinthians 4:7).