1. Neuter Accusative forms: nón (for né-oinom, later únum), not; iterum (comparative of i-, stem of is), a second time; démum (superlative of dé, down), at last.
2. Feminine Accusatives: partim, partly. So statim, on the spot; saltim, at least (generally saltem), from lost nouns in -tis (genitive -tis). Thus -tim became a regular adverbial termination; and by means of it adverbs were made from many noun- and verb-stems immediately, without the intervention of any form which could have an accusative in -tim: as, séparátim, separately, from séparátus, separate. Some adverbs that appear to be feminine accusative are possibly instrumental: as, palam, openly; perperam, wrongly; tam, so; quam, as.
3. Plural Accusatives: as, aliás, elsewhere; forás, out of doors (as end of motion). So perhaps quia, because.
4. Ablative or Instrumental forms: quá, where; intrá, within; extrá, outside; quí, how; aliquí, somehow; forís, out of doors; quó, whither; adeó, to that degree; ultró, beyond; citró, this side (as end of motion); retró, back; illóc (for illó-ce), weakened to illúc, thither. Those in -tró are from comparative stems (cf. úls, cis, re-).
5. Locative forms: ibi, there; ubi, where; illí, illí-c, there; peregrí (peregré), abroad; híc (for hí-ce), here. Also the compounds hodié (probably for hódié), to-day; perendié, day after to-morrow.
6. Of uncertain formation: (1) those in -tus (usually preceded by i), with an ablative meaning: as, funditus, from the bottom, utterly; dívínitus, from above, providentially; intus, within; penitus, within; (2) those in -dem, -dam, -dó: as, quidem, indeed; quondam, once; quandó (cf. dónec), when; (3) dum (probably accusative of time), while; iam, now.