If the word for the commemoration of a yearly event is anniversary, by
analogy the logical word for the commemoration of a monthly event
should be "mensiversary." "Anniversary" comes from the Latin "annum,"
meaning year. (The "versary" part comes from a Latin word referring
to turning.) The Latin word for month is "mensis." Hence,
mensiversary. I've not found this word in any reputable dictionary,
but perhaps exposure in Google Answers can help to put it there. ;-)
"MEN-SI-VER-SA-RY (mèn´se-vûr´se-rê) noun
1. The monthly recurring date of a past event, especially one of
historical, national, or personal importance: a first date
mensiversary; the mensiversary of the founding of Nerstone Pictures.
2. A celebration commemorating such a date.
from Latin: mensis, month + versus, past participle of vertere, to turn."
Nerstone Pictures: Neologisms
"mensiversary (men-si-VER-suh-ree) noun
The day of the month on which an event occurred in some previous month.
Created by Kat Petersen in a text message. Derived from mensis (Latin:
month) + versus, past participle of vertere (Latin: to turn), in the
pattern of anniversary."
Neologism of the Week
"The second consideration weakening my confidence is that our media
have, in general, shown themselves to be comparably amateurish in the
PR war. On October 11, the mensiversary of 9/11, a news article in the
Washington Post admitted that bin-Laden is winning the propaganda
Independent American Party: A Look at Islam
"Not quite half a year ago, on an Election Tuesday in New York, our
nation's fabric was attacked, the peace was shattered, and the city's
two tallest buildings came crashing down...
People will make much today of the sixth mensiversary of the attacks.
And tomorrow will once again be the day after today."
Life with Jill the Pill: Let's Be Pensive
A charming way of expressing a similar idea is "month's mind":
"MONTH'S MIND, in medieval and later England a service and feast held
one month after the death of anyone in his or her memory. Bede speaks
of the day as commemorationis dies. These 'Minding days' were of great
antiquity, and were survivals of the Norse minne or ceremonial
drinking to the dead."
1911 Encyclopedia: MONTH'S MIND
"There is an old Irish custom called a 'month's mind' where family and
friends gather about a month after someone's death to celebrate that
National Catholic Reporter: Memorial Service for Gary MacEoin
"Many Catholic cultures observe 'month's mind' Masses or yearly anniversaries."
Christ the Redeemer Roman Catholic Church: THE BOOK OF REMEMBRANCE
A fanciful suggestion: "uncianniversary," a portmanteau word I created
from Latin "uncia," meaning a twelfth part, and "anniversary." Since a
month is one-twelfth of a year, a month's celebration could be an
"uncianniversary." I like the sound of it. A bit silly, yes. But I get
that way if I think in Latin for very long.
Google search strategy:
Google Web Search: "mensiversary"
Google Web Search: "month's mind"
Thanks for a very intriguing question, Cleric. I hope my speculations
on this matter provide a satisfying response to your query, which has
no cut-and-dried answer. Things which are cut and dried are seldom as
interesting as living things that change, grow, and sometimes tread on