古: the past; ancient times

interest

the past / ancient times

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

history / the study of history

the past and present

everything

(colloquial) current boyfriend