Following are all the trefoil like words, in the list below.
CLOVER
100% like trefoil
MEDICK
100% like trefoil
MEDIC
99.48% like trefoil
CINQUEFOIL
33.38% like trefoil
QUATREFOIL
33.38% like trefoil
CINQUEFOILS
33.38% like trefoil
QUATREFOILS
33.38% like trefoil
CROSSLET
33.38% like trefoil
BIRDSFOOT
33.38% like trefoil
VESICA
33.38% like trefoil
HORSESHOE
33.38% like trefoil
PALMETTE
33.38% like trefoil
TRIFORM
33.38% like trefoil
CRUCIFORM
33.38% like trefoil
MOTIF
33.38% like trefoil
STRAPWORK
33.38% like trefoil
TRIFOLIATE
33.38% like trefoil
FLOWERHEAD
33.38% like trefoil
FLEURON
33.38% like trefoil
PETALOID
33.38% like trefoil
TRIFOLIUM
33.38% like trefoil
RHOMBOID
33.38% like trefoil
CROCKETED
33.38% like trefoil
FLORIATED
33.38% like trefoil
CRESCENT
33.38% like trefoil
ANNULET
33.38% like trefoil
SALTIRE
33.38% like trefoil
CROSSLETS
33.38% like trefoil
PYRIFORM
33.38% like trefoil
CLOVERS
33.38% like trefoil
VETCH
33.38% like trefoil
ENGRAILED
33.38% like trefoil
ESCALLOP
33.38% like trefoil
CUSPED
33.38% like trefoil
ROUNDEL
33.38% like trefoil
FIMBRIATION
33.38% like trefoil
OVAL
33.38% like trefoil
CROCKETS
33.38% like trefoil
FIMBRIATED
33.38% like trefoil
ANTHEMION
33.38% like trefoil
TRIANGULAR
33.38% like trefoil
LOZENGE
33.38% like trefoil
SNOWDROP
33.38% like trefoil
PALMETTES
33.38% like trefoil
CHRYSANTHEMUM
33.38% like trefoil
TRACERY
33.38% like trefoil
COUNTERMARK
33.38% like trefoil
ARCADING
33.38% like trefoil
TRACERIED
33.38% like trefoil
FOLIATE
33.38% like trefoil
TRIFOLIOLATE
33.38% like trefoil
BILOBATE
33.38% like trefoil
TRISKELION
33.38% like trefoil
FALCATE
33.38% like trefoil
FIMBRIATE
33.38% like trefoil
ROSETTE
33.38% like trefoil
FIGWORT
33.38% like trefoil
RHOMBOIDAL
33.38% like trefoil
FYLFOT
33.38% like trefoil
PENTAGONAL
33.38% like trefoil
NUTLET
33.38% like trefoil
BISTORT
33.38% like trefoil
PENTAGRAM
33.38% like trefoil
ORNAMENTAL
33.38% like trefoil
MARTLET
33.38% like trefoil
OXEYE
33.38% like trefoil
CUSPING
33.38% like trefoil
OCTAGONAL
33.38% like trefoil
ORPHREY
33.38% like trefoil
SHAMROCK
33.38% like trefoil
CALAMINT
33.38% like trefoil
EMBLEM
33.38% like trefoil
OVOID
33.38% like trefoil
TETRAGON
33.38% like trefoil
COLLARETTE
33.38% like trefoil
TRIFID
33.38% like trefoil
CONOID
33.38% like trefoil
DENTILS
33.38% like trefoil
CAVETTO
33.38% like trefoil
STRAPLIKE
33.38% like trefoil
DODECAGONAL
33.38% like trefoil
SEMICIRCULAR
33.38% like trefoil
SACCATE
33.38% like trefoil
CRIBRIFORM
33.38% like trefoil
ORACHE
33.38% like trefoil
BRACTEATE
33.38% like trefoil
TRILLIUM
33.38% like trefoil
CLOVERLEAF
33.38% like trefoil
TRISETUM
33.38% like trefoil
THALICTRUM
33.38% like trefoil
FOLIAGE
33.38% like trefoil
TETRADYMIA
33.38% like trefoil
ASPARAGUS
33.38% like trefoil
TRICOTYLEDON
33.38% like trefoil
LEAFET
33.38% like trefoil
FOLIOLE
33.38% like trefoil
PHYTOLACCA
33.38% like trefoil
FOLIUM
33.38% like trefoil
LEAF
33.38% like trefoil
TRIODIA
33.38% like trefoil