absentering.

absentere + -ing, first part verbal noun form of absentere (“to absent (oneself)”), from German absentieren or French absenter (“to leave, absent oneself”), from absent (“absent, absent-minded; absentee”) (with the suffix -er, from Latin -āre), from Old French ausent, from Latin absēntem, accusative singular of absēns (“absent, missing”), present participle of absum (“to be away, absent, distant”), from both ab- (“away from, off, from”), from Latin ab (“from, away from, on, in”), from Proto-Italic *ab, from Proto-Indo-European *h₂epó (“off, away”) + and from sum (“to exist, be; have”), from Proto-Italic *ezom (“to be”), from Proto-Indo-European *h₁ésti (“to be”), from *h₁es- (“to be”). Last part from Old Norse -ingr m, -ingi m, -ing f, from Proto-Germanic *-ingō, *-ungō.