Gratefull

[T]his is a guift / Very gratefull, I am ſure of it, to expreſſe / The like kindneſſe my ſelfe, that haue beene / More kindely beholding to you then any: […]

Source: wiktionary

I cannot giue thee leſſe to be cal'd gratefull: / Thou thoughtſt to helpe me, and ſuch thankes I giue, / As one neere death to thoſe that vviſh him liue: […]

Source: wiktionary

[T]he aſſvvagement of his [a wise man's] diſcontent conſiſts in tvvo things, formerly preſcribed as remedies againſt corporeall pain; viz. Diverſion of his thoughts from his loſſe, or the cause of it; and an application of them to thoſe things, vvhich he knovves to be gratefull and pleaſant to his mind.

Source: wiktionary