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Webster 1913 Edition

Self-conviction

Selfˊ-con-vic′tion

,

Noun.

The act of convicting one’s self, or the state of being self-convicted.

Webster 1828 Edition

Self-conviction

SELF-CONVIC'TION

,

Noun.

Conviction proceeding from one's own consciouness, knowledge or confession.

Definition 2024

self-conviction

self-conviction

English

Noun

self-conviction ‎(uncountable)

Conviction proceeding from one's own consciousness, knowledge, or confession.
- 1774, Jonathan Swift, The Works of Dr Jonathan Swift:
  No wonder such a spirit, in such a situation, is provoked beyond the regards of religion or self-conviction.

References

Oglivie, John. The Imperial Dictionary of the English Language: A Complete Encyclopedic Lexicon, Literary, Scientific, and Technological. Blackie & Son. (1884).