Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Old English mihtig
Old English miht (suffix)
Old English ig (suffix)
Proto-West Germanic *mahtīg (inherited)
Old High German mahtīc (cognate)
Gothic 𐌼𐌰𐌷𐍄𐌴𐌹𐌲𐍃 (cognate)
Old Norse máttugr (cognate)
Old Norse máttigr (mention)
Old Frisian machtich (cognate)
Old Frisian mechtich (mention)
Old Saxon mahtīg (cognate)

Middle English myghty (inherited)
Old Saxon mahtig (cognate)
Yola michty (inherited)