Origin: 1490–1500; var. (north) of mensk, ME menske courtesy, honor < ON menska humanity, c. OE menniscu lit., the human state; akin to mensch.See man1, -ish1
men·ses (měn'sēz) pl.n.
(used with a sing. or pl. verb) The monthly flow of blood and cellular debris from the uterus that begins at puberty in women and the females of other primates. In women, menses ceases at menopause. Also called catamenia.
[Latin mēnsēs, pl. of mēnsis, month; see mē-2 in Indo-European roots.]
menses men·ses (měn'sēz) n. The monthly flow of blood and cellular debris from the uterus that begins at puberty and ceases at menopause. Also called emmenia, menstrual period.