844. Root verbs have a root as imperative stem (745-780): as, #es#, &c.,
#fer#, &c. But the imperative of #nōlō# has a stem in #-ī-#, like verbs
in #-īre#: thus, #nōlī#, #nōlī-tō#, #nōlī-te#, #nōlī-tōte#.
845. The imperative stem of verbs in #-ere#, and of verbs in #-āre#,
#-ēre#, and #-īre#, is the same as that of the indicative: as,
#rege#, #regi-tō#, #regu-ntō#, #rege-re#; #cape#, #capi-tō#,
#capiu-ntō#; #fī#; #laudā#, &c.; #monē#, &c.; #audī#, &c.
846. The second person singular imperative active of #dīcō#, #dūcō#, and
#faciō#, is usually #dīc#, #dūc#, and #fac#, respectively, though the
full forms, #dīce#, &c., are also used, and are commoner in old Latin.
Compounds of #dūcō# may have the short form: as, #ēdūc#. #ingerō# has
once #inger# (Catull.). #sciō# has regularly the singular #scī-tō#,
plural #scī-tōte#, rarely #scī-te#.