■ verb ( ~s , ~ing , ~ed )
1》 live together and have a sexual relationship without being married.
2》 coexist.
Derivatives
~ant noun
~ation -'teɪʃ(ə)n noun
~ee -'ti: noun
~er noun
Origin
C16 (earlier (ME) as ~ation ): from L. ~are , from co- 'together' + habitare 'dwell'.