In posse.—In possible existence.
In posterum.—For the time to come.
In propriâ personâ.—In his own person.
In puris naturalibus.—Quite naked.
In re.—In the matter of.
In situ.—In its original situation.
In statu quo.—In the former state.
In te, Domine, speravi.—In thee, Lord, have I put my trust.
In terrorem.—By way of warning.
In totidem verbis.—In so many words.