The suffix is "-able" (test is one of the root words).
The common words are:
contestable
detestable
incontestable
intestable
testable
uncontestable
Words with the suffix ance:acceptanceappearancearroganceassistanceclearancecompliancecontinuancedisappearancedistanceeleganceentrancegrievancemaintenanceperformancepredominanceresistancetolerancesubstancetemperanceviligance
Some words that end or with suffix cain: cocain. marocain.
Words do not begin with suffixes. A suffix comes at the END of a word.
Words start with a prefix and end with a suffix.
Words ending with lity:abilityagilitybrutalitycentralitycivilityformalitygeneralityfutilityneutralitypersonalitypluralityrealitysenilitystabilitytranquilityutilityvitality
Words with the suffix ance:acceptanceappearancearroganceassistanceclearancecompliancecontinuancedisappearancedistanceeleganceentrancegrievancemaintenanceperformancepredominanceresistancetolerancesubstancetemperanceviligance
Some words that end with the suffix 'fy' are:acidify.amplify.beautify.belfry.calcify.certify.clarify.classify.detoxify.dignify.electrify.emulsify.falsify.fortify.glorify.horrify.identify.intensify.justify.leafy.liquefy.magnify.mystify.notify.nullify.objectify.pacify.purify.qualify.quantify.ratify.rectify.sanctify.solidify.terrify.testify.typify.unify.verify.versify.vilify.vivify.
Some words that end with the suffix "idle" include inflexible, credible, and indivisible.
Some words that end or with suffix cain: cocain. marocain.
There are no common English words that end with the suffix "ankle".
None. Words end with a suffix.
Some words that end with the suffix "craft" include aircraft, spacecraft, and witchcraft.
Some words that end with the suffix 'ogue' include dialogue, epilogue, and monologue.
Some words that end with the suffix -ct include: direct impact contact respect
Some words that end with the suffix "full" include beautiful, powerful, and careful.
Some words that end with the suffix 'usion' include confusion, diffusion, infusion, and delusion.
Some words that end with the suffix -our include colour, flavour, harbour, and honour.