(A.) THE PERSONAL AND REFLEXIVE PRONOUN.
644. The pronoun of the first person, #ego#, _I_, of the second person,
#tū#, _thou_, and the reflexive pronoun, #suī#, #sē#, _himself_,
_herself_, _itself_, _themselves_, are declined as follows:
+--------+--------------------------+-----------------------+-------+
| | ego, _I_ | tu, _thou_ | sui, |
| | | |_self_ |
+--------+----------+---------------+-------+---------------+-------+
| | Sing. | Plur. | Sing. |Plur. | Sing. |
| | | | | |& Plur.|
+--------+----------+---------------+-------+---------------+-------+
| _Nom._ | ego | nōs | tū | vōs | |
| _Gen._ | meī | nostrŭ̄m, -trī | tuī | vestrū̆m, -trī | suī |
| _Dat._ | mihĭ̄, mi | nōbīs | tibĭ̄ | vōbīs | sibī̆ |
| _Acc._ | mē | nōs | tē | vōs | sē |
| _Abl._ | mē | nōbīs | tē | vōbīs | sē |
+--------+----------+---------------+-------+---------------+-------+
645. The nominatives #ego# and #tū#, and the accusatives #mē#, #tē# and
#sē#, have no case ending. The last vowel of #ego# is rarely long in
Plautus, long or short in Lucilius. The nominative ego has a different
stem from that of its other cases, and the plurals of #ego# and #tū#
have a different stem from that of the singular.
646. #meī#, #tuī#, and #suī#, which are often monosyllables in old
verse, were originally the genitive of the neuter possessives, used
substantively. An old genitive #mīs# is quoted, and #tīs# occurs rarely
in Plautus.
647. The relation of the ending #-bīs# in #vōbīs# to #-bī̆# in #tibī̆#
may be due to analogy with #illīs, illī#. #nōbīs# is formed after
#vōbīs#.
648. In old Latin, the ablative is #mēd, tēd, sēd# (426), which forms
are also used irrationally for the accusative. But by Terence’s time the
#-d# was no longer used (143).
649. Older forms for #vestrū̆m# and #vestrī# are #vostrūm# and #vostrī#.
The genitive plural was originally a genitive of the possessive: that in
#-ī# being the neuter singular, that in #-ū̆m# the masculine or feminine
plural. In old Latin, #nostrōrum#, #nostrārum#, #vostrōrum#, #vostrārum#
also occur.
650. Emphasis is given (1.) by reduplication (189): Ac. and Ab. #mēmē#,
#tētē#, rare; #sēsē#, very common. (2.) by #-te# added to the N. of
#tū#: #tūte#. (3.) by #-met# added to any case but the genitive plural:
as, #egomet#; but #tū# has only #tūtemet# or #tūtimet#.
651. In inscriptions, the datives MIHEI, TIBEI, and SIBEI occur, so
written in verse sometimes even when the last syllable is short; and
MIHE, TIBE. Plural: D. and Ab. VOBEIS. Ac. ENOS in an old hymn; SEESE
(29, 1).