outbreaking1
/ˈaʊtˌbreɪkɪŋ/noun
An outburst or eruption; an emergence from latency; a lapse from moral conduct; an unruly or violent misdemeanour.
Origin
Late Middle English; earliest use found in John Trevisa (c1342–?1402), translator. From outbreak + -ing.
outbreaking2
/ˈaʊtˌbreɪkɪŋ/adjective
Breaking or bursting out, erupting; departing or lapsing from moral or religious rectitude.
Origin
Late 16th century; earliest use found in Samuel Daniel (?1563–1619), poet and historian. From outbreak + -ing.