The Collaborative International Dictionary
Penitentially
Penitentially \Pen`i*ten"tial*ly\, adv. In a penitential manner.
Wiktionary
penitentially
adv. In a penitential manner.
WordNet
penitentially
adv. showing remorse [syn: penitently, repentantly] [ant: impenitently, impenitently]
Usage examples of "penitentially".
I am not quite clear whether these articles were carried penitentially or ostentatiously.