Like most high schools in the late 1980s, mine did not offer courses in Latin. I finally got to take a full year of Latin during my B.A., which was marvelous, but I'm certain that nobody receives the sort of classical education that one might have fifty years ago. Then again, I suspect that I'm part of that tiny minority that actually would have profited from such a course of study.
But enough of this biographical detail. This list contains 60 Latin adverbs (with some prepositions and conjunctions hiding away too) that have found their way into English unchanged in form or meaning. Though some of them are extraordinarily obscure, others are regularly found in academic papers, though often abbreviated (ibidem = ibid.; videlicet = viz.). And, while some of these terms have perfectly good Anglo-Saxon equivalents, others are due for resuscitation. Try them on for size!
Word
Definition
alternatim
alternately
ana
in equal quantities
bis
twice; in two places
circa
about; around
circiter
about; around
coram
in the presence of; before
divisim
separately
ergo
therefore; hence
gradatim
step by step
gratis
without charge; for free
gregatim
in flocks
guttatim
drop by drop
ibidem
in the same place
idem
the same word as mentioned before
imprimis
in the first place
infra
below; later in a text
interim
meanwhile
item
likewise; also
iterum
again; afresh; anew
jure
by law
literatim
letter for letter
pace
contrary to the opinion of; in respectful disagreement with
partim
in part
passim
everywhere; dispersedly
per
through; according to; by means or agency of
primo
in the first place
pro
in favour of; for
proximo
of next month
punctatim
point for point
qua
in the capacity of
quasi
as if; seemingly; in a manner
quatenus
in the capacity of; in so far as
quoad
with respect to; as regards
quondam
former; sometime; formerly
scilicet
to wit; namely
secundum
according to
secus
otherwise
semper
always
seriatim
in succession; one after another
sic
thus
similiter
in a similar manner
sine
without
singillatim
singly
solus
alone
sparsim
here and there
statim
immediately; at once
stillatim
drop by drop
subito
at once; immediately
supra
above; earlier in a text
syllabatim
syllable by syllable
tanti
worthwhile
tempore
in the time of
ubique
everywhere
ultimo
of last month
variorum
including the notes of earlier scholars or editors