the word 'tentatively' is built upon the adjective 'tentative,' which originates from the latin verb tentare, meaning 'to handle, try, test.' this verb is a frequentative form of tendere ('to stretch'), suggesting a repeated stretching out or probing toward something. the core semantic link is between the act of testing or trying something and the resulting state of uncertainty or hesitancy. the adverbial suffix '-ly,' of germanic origin, was attached to form the word describing the manner of an action done in an experimental, provisional, or non-committal way.

Structure: tentative (hesitant) + ly (adverb suffix) tentative (from medieval latin tentativus, from latin tentare, a variant of temptare meaning 'to feel, try, test') + ly (from old english -līce, forming adverbs from adjectives).