diacetylmorphine (noun) heroin: smack
Detalii: heroin (the drug) is based on Latin/Greek heros 'hero' because of its effects on the user's self-esteem; heroine is a courageous principal female character (the counterpart of hero)
Sinonime: earlier,
elder, eldest,
first, first-born,
former,
lower, of a former period, of an earlier time,
preceding,
prior, senior
Antonime: younger