assertive

the word 'assertive' is built upon the verb 'assert', which entered english in the early 17th century from the latin asserere, meaning 'to join to, claim, affirm'. this latin verb itself is a compound of ad- ('to') and serere ('to join, bind'), suggesting the act of firmly attaching a claim to oneself or a fact to reality. the suffix '-ive', of latin origin (-ivus), is used to form adjectives indicating a tendency or capacity. therefore, the literal morphemic construction yields 'having the tendency to affirm or claim'. over time, this evolved from simply stating a fact to describing a confident, self-assured, and sometimes forceful manner of expressing oneself or one's rights.

Structure: assert (to state positively) + ive (adjective-forming suffix) assert (from latin assertus, past participle of asserere, meaning 'to claim, affirm') + ive (a suffix of latin origin used to form adjectives meaning 'of the nature of' or 'tending to').