Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English obligate
English oblige (doublet)
Latin obligātus (borrowed)
Latin obligō (mention)

English oblige (doublet)
English obligately (suffix)
English obligator (suffix)
English obligatee (suffix)
English nonobligate (prefix)
Spanish obligar (mention)