1. Etymology of the English suffix -al

Derivations in English

citral, consensual, distal, formal, molal, trial, logical, neral, aboriginal, abysmal, academical, accessorial, accusatival, accusatorial, additional, adenoidal, adjectival, affectional, agentival, agonal, alkaloidal, alluvial, ambrosial, ambrosian, ammoniacal, anal, anapophysial, antiphonal, antipodal, apocryphal, architectural, archival, argental, armorial, arsenical, audial, aural, auroral, axial, barmecidal, baronial, basal, bathyal, benedictional, branchial, bronchial, chondral, chordal, classical, clinical, cloistral, coastal, coincidental, colloidal, colloquial, colossal, combinatorial, compartmental, complemental, conchoidal, confrontational, congregational, consonantal, constitutional, continental, conversational, correctional, cranial, creatural, critical, cubical, cultural, cyclical, cynical, decadal, declensional, deltoidal, denominational, dermal, detrimental, devotional, diacritical, dialectical, directional, diversional, domal, duodenal, dural, economical, ectal, educational, electoral, electrical, ellipsoidal, eluvial, emotional, empirical, enteral, epigeal, epochal, equational, estral, ethical, ethnical, exceptional, factional, fanatical, faucal, fecal, fetal, filarial, fractional, fragmental, frictional, fugal, functional, galenical, gingival, global, glossal, glottal, gluteal, gyral, hadal, helical, hemal, hematal, heptagonal, hexagonal, hexameral, hippocampal, homicidal, hyetal, ideational, illustrational, imperatival, incidental, indicial, infinitival, inflectional, infusorial, inspirational, institutional, intentional, intuitional, invitational, involutional, ironical, junctural, lacunal, lexical, linguistical, loral, lymphangial, magical, maniacal, maximal, mediatorial, menopausal, millennial, mimical, mitral, monarchal, monilial, monitorial, monotonal, national, neural, nodal, notarial, notional, noumenal, obligational, observational, occasional, occupational, octahedral, octal, operational, optical, optimal, optional, orchestral, ornamental, osteal, pallial, paradisal, pericardial, periodical, phantasmal, pharmaceutical, phenomenal, phrasal, phthisical, pivotal, plastral, plexal, precocial, presbyterial, professional

2. Etymology of the English suffix -al

Derivations in English

abuttal, accrual, accusal, appraisal, approval, arrayal, avowal, betrothal, carousal, committal, conferral, decrial, deferral, defrayal, demurral, denial, devisal, disavowal, dismissal, dispersal, exposal, perusal, poundal, proposal, portrayal, rebuttal, recital, recountal, recusal, referral, remittal, removal, renewal, reposal, reprieval, reproval, requital, restoral, retrieval, reversal, reviewal, revisal, revival, subdual, surprisal, survival, withdrawal, deposal, burial, rehearsal, naphthalene

3. Etymology of the English suffix -al

Derivations in English

acetal, benzal, bromal, chloral, citronellal, ethal, ethanal, geranial, methanal, methylal, neral, naphthalene, citral, furfural, barbital, piperonal