lamentably

adverb2

1. •
   Regrettably; in a manner deserving or inspiring lamentation.

   • Lamentably the good too die; we will all mourn his passing.
2. •
   (no longer used) With lamentation.

   • [S]he […] lamentably recounted to hym all the felonyes / and iniuries done to her by syr Hewe Spencer […] — 1523