converse (v.) Look up converse at Dictionary.com
"to communicate (with)," 1590s; earlier "to move about, live, dwell" (mid-14c.), from Old French converser "to talk" (12c.), from Latin conversari (see conversation). Related: Conversed; conversing.
converse (adj.) Look up converse at Dictionary.com
"exact opposite," 1560s, from Latin conversus "turn around," past participle of convertere "to turn about, turn around, transform," from com "with, together" (see com-) + vertere "to turn" (from PIE root *wer- (2) "to turn, bend"). Originally mathematical. The noun is attested from 1550s in mathematics. Related: Conversely.