Dedication: 3/15/05

penes: under the control of, within + intro: go in (see inter, intra); penetralis: innermost

impenetrability, impenetrable, impenetrableness, impenetrably, impenitrate, impenetration, interpenetrate, penetrability, penetrable, penetrably, penetralia, penetramater, penetrance, penetrant, penetrate, penetrating, penetration, penetrative, penetratively, penetrator, penetrometer, unpenetrated

ph Penates related to penes.
penis: tail

pencil, penciler, penicil, penicillate, penicilliform, penicillin, penile, penis, penis-envy, time-pencil

penna (feather): see pinna

penuria: scarcity (cf. paene)

penurious, penuriously, penuriousness, penury

per: through

ampersand, parboil, parvenue, per, per-, per annum, per diem, perceive, perform, permit, etc.

Note rare alternative spelling par-; e.g., parvenu.
perdix: