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The Collaborative International Dictionary
Repercussing

Repercuss \Re`per*cuss"\ (-k[u^]s"), v. t. [imp. & p. p. Repercussed (-k?st");p. pr. & vb. n. Repercussing.] [L. repercusus, p. p. of repercutere to drive back; pref. re- re- + percutere. See Percussion.] To drive or beat back; hence, to reflect; to reverberate.

Perceiving all the subjacent country, . . . to repercuss such a light as I could hardly look against.
--Evelyn.

Wiktionary
repercussing

vb. (present participle of repercuss English)