punctum delens

From the Latin.

punctum delens (plural puncta delentia)

1. (orthography) A dot placed above a letter to indicate that it is a copying error and should be ignored.
2. (orthography) A dot placed above a consonant in Irish, when it is written in Gaelic script, to indicate that the consonant is lenited.

From pūnctum (“point, dot”) + dēlēns, present active participle of dēleō (“delete”).

• (Classical) IPA^(key): /ˈpunk.tum ˈdeː.lens/, [ˈpʊŋkt̪ʊ̃ˑ ˈd̪eːɫ̪ẽːs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈpunk.tum ˈde.lens/, [ˈpuŋkt̪um ˈd̪ɛːlens]

pūnctum dēlēns n (genitive pūnctī dēlentis); second declension

1. (orthography) a punctum delens; mark made to indicate that a written character is an error to be ignored.

Second-declension noun (neuter) with a third-declension adjective.

• English: punctum delens