Some words that start with SY are:
"Co-" is a common prefix for "together."
Examples of words with the prefix 'syn' are:synagoguesynapsesynchronizesyndicationsyndromesynergysynonymsynonymoussyntaxsynthesizesyntheticsynonym, synthetic, synchronize
semi-, spiro-, sub-, super-, syn-, sym- etc
synonym, synchronize, synthesis, synoptic, etc. (syn means with or together.)
Syn- \Syn-\ [Gr. sy`n with.]A prefix meaning with, along with, together, at the same time. Syn- becomes sym- before p, b, and m, and syl- before l. Source: Webster's Revised Unabridged Dictionary (1913
Con-, com-, or co- is the Latin-derived prefix denoting the condition of being or doing together; syn- or sym- is the Greek-derived equivalent.
Synchronize, syndicate
The prefix of synchronize is "syn-", which means "together" or "with."
asynapsesasynapsisasynchroniesasynchronismasynchronismsasynchronousasynchronouslyasynchronyasyndetaasyndeticasyndeticallyasyndetonasyndetonsbiosynthesesbiosynthesisbiosyntheticbiosyntheticallybusynessbusynesseschemosyntheseschemosynthesischemosyntheticeleemosynaryeugeosynclinaleugeosynclineeugeosynclinesgeosynchronousgeosynclinalgeosynclinegeosynclinesidiosyncrasiesidiosyncrasyidiosyncraticidiosyncraticallylangsynelangsynesmonosynapticmonosynapticallynonsynchronousnucleosynthesesnucleosynthesisnucleosyntheticparasynthesesparasynthesisparasyntheticphotosynthatephotosynthatesphotosynthesesphotosynthesisphotosynthesizephotosynthesizedphotosynthesizesphotosynthesizingphotosyntheticphotosyntheticallypolysynapticpolysynapticallypolysyndetonpolysyndetonspostsynapticpostsynapticallypostsyncpostsyncedpostsyncingpostsyncspresynapticpresynapticallypsychosynthesespsychosynthesisresynthesesresynthesisresynthesizeresynthesizedresynthesizesresynthesizingselsynselsynssemisyntheticsinsynesynsynaeresessynaeresissynaesthesessynaesthesiasynaesthesiassynaesthesissynagogsynagogalsynagogssynagoguesynagoguessynalephasynalephassynaloephasynaloephassynanonsynanonssynapsesynapsedsynapsessynapsidsynapsidssynapsingsynapsissynapticsynapticallysynaptosomalsynaptosomesynaptosomessynarthrodialsynarthrosessynarthrosissyncsyncarpsyncarpiessyncarpoussyncarpssyncarpysyncategorematicsyncategorematicallysyncedsynchsynchedsynchingsynchrosynchrocyclotronsynchrocyclotronssynchromeshsynchromeshessynchronalsynchroneitiessynchroneitysynchronicsynchronicalsynchronicallysynchronicitiessynchronicitysynchroniessynchronisationsynchronisationssynchronisesynchronisedsynchronisessynchronisingsynchronismsynchronismssynchronisticsynchronizationsynchronizationssynchronizesynchronizedsynchronizersynchronizerssynchronizessynchronizingsynchronoussynchronouslysynchronousnesssynchronousnessessynchronysynchrossynchroscopesynchroscopessynchrotronsynchrotronssynchssyncingsynclinalsynclinesynclinessyncomsyncomssyncopalsyncopatesyncopatedsyncopatessyncopatingsyncopationsyncopationssyncopativesyncopatorsyncopatorssyncopesyncopessyncopicsyncreticsyncretisesyncretisedsyncretisessyncretisingsyncretismsyncretismssyncretistsyncretisticsyncretistssyncretizesyncretizedsyncretizessyncretizingsyncssyncytiasyncytialsyncytiumsyndactyliessyndactylismsyndactylismssyndactylysyndesessyndesissyndesisessyndesmosessyndesmosissyndetsyndeticsyndeticallysyndetssyndicsyndicalsyndicalismsyndicalismssyndicalistsyndicalistssyndicatesyndicatedsyndicatessyndicatingsyndicationsyndicationssyndicatorsyndicatorssyndicssyndromesyndromessynesynecdochesynecdochessynecdochicsynecdochicalsynecdochicallysynecologicalsynecologiessynecologysynecticsyneresessyneresissynergeticsynergiasynergiassynergicsynergicallysynergidsynergidssynergiessynergismsynergismssynergistsynergisticsynergisticallysynergistssynergysynesissynesisessynesthesiasynesthesiassynestheticsynfuelsynfuelssyngamicsyngamiessyngamysyngassyngasessyngassessyngeneicsynizesessynizesissynkaryasynkaryonsynkaryonssynodsynodalsynodicsynodicalsynodssynonymsynonymesynonymessynonymicsynonymicalsynonymiessynonymistsynonymistssynonymitiessynonymitysynonymizesynonymizedsynonymizessynonymizingsynonymoussynonymouslysynonymssynonymysynopsessynopsissynopsizesynopsizedsynopsizessynopsizingsynopticsynopticalsynopticallysynostosessynostosissynoviasynovialsynoviassynovitissynovitisessyntacticsyntacticalsyntacticallysyntacticssyntagmasyntagmassyntagmatasyntagmaticsyntaxsyntaxessynthsynthesessynthesissynthesistsynthesistssynthesizesynthesizedsynthesizersynthesizerssynthesizessynthesizingsynthetasesynthetasessyntheticsyntheticallysyntheticssynthssyntonicsyntoniessyntonysynurasynuraetenosynovitistenosynovitisesunsynchronized
In Latin, the prefix "syn" means "together" or "with." It is commonly used to indicate joint action or association.
the prefix is syn meaning together the root is chron meaning time
Not many... SYN and SELSYN