How to Spell thank
thank
thank - verb
- To express gratitude to —used in the phrase thank you usually without a subject to politely express gratitude or sometimes to emphasize a preceding statement especially by implying that it is not subject to question —used in such phrases as thank God, thank goodness usually without a subject to express gratitude or more often only the speaker's or writer's pleasure or satisfaction in something
Source: Merriam-Webster Dictionary API
"thanked her for the present"
Etymology
Middle English, from Old English {it}thancian{/it}; akin to Old English {it}thanc{/it} gratitude {ma}{mat|thanks|}{/ma}