syncretism

n. joining of two seemingly contradictory ideas or beliefs (Philosophy, Religion); combination of at least different inflectional forms (Linguistics)

Syncretism consists of the attempt to reconcile disparate or contradictory beliefs, often while melding practices of various schools of thought. The term may refer to attempts to merge and analogize several originally discrete traditions, especially in the theology and mythology of religion, and thus assert an underlying unity allowing for an inclusive approach to other faiths.
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Noun
1. the union (or attempted fusion) of different systems of thought or belief (especially in religion or philosophy); "a syncretism of material and immaterial theories"
(hypernym) union, unification
(derivation) syncretize, syncretise
2. the fusion of originally different inflected forms (resulting in a reduction in the use of inflections)
(hypernym) fusion
(derivation) syncretize, syncretise

(n.)
Attempted union of principles or parties irreconcilably at variance with each other.
  

Synonyms and related words:
Anschluss, addition, admixture, affiliation, agglomeration, aggregation, agreement, alliance, alloyage, amalgamation, assimilation, association, blend, blending, cabal, cartel, casualness, centralization, coalescence, coalition, combination, combine, combo, comminglement, commingling, commixture, composition, confederacy, confederation, congeries, conglomeration, conjugation, conjunction, consolidation, conspiracy, crudity of intellect, denominationalism, eclecticism, ecumenism, embodiment, encompassment, enosis, federalization, federation, fusion, hookup, immixture, imprudence, inclusion, incorporation, indiscreetness, indiscretion, indiscriminateness, indiscrimination, insensibility, insensitivity, integration, interfusion, interlarding, interlardment, interminglement, intermingling, intermixture, junction, junta, lack of feeling, lack of refinement, league, marriage, meld, melding, merger, mingling, mixing, mixture, package, package deal, partisanism, pluralism, promiscuity, promiscuousness, schismatism, sectarianism, sectarism, solidification, syndication, syneresis, synthesis, tactlessness, tie-up, uncriticalness, undiscriminatingness, undiscriminativeness, unfastidiousness, unification, union, unmeticulousness, unparticularness, unpreciseness, unselectiveness, untactfulness, wedding