hebdomad

heb·do·mad

noun \ˈheb-də-ˌmad\

Definition of HEBDOMAD

1

: a group of seven

2

: a period of seven days : week

Origin of HEBDOMAD

Latin hebdomad-, hebdomas, from Greek, from hebdomos seventh, from hepta seven — more at seven

First Known Use: 1545

Rhymes with HEBDOMAD

cephalad, chiliad, ennead, Galahad, helipad, Hyderabad, Iliad, kilorad, laterad, legal pad, Leningrad, lily pad, mediad, oread, overplaid, Pythiad, Stalingrad, superadd, Trinidad, undergrad, Volgograd