sylvan

=> silvan.

sybaritic, sycamore, sycophancy, sycophant, sycophantic, sycophantically, Sydney, Sydney Chapman, syllabary, syllabic, syllabically, syllabification, syllabify, syllable, syllabub (also sillabub), syllabus, syllogism, syllogistic, sylph, sylphlike, symbiosis, symbiotic, symbol, symbolic, symbolically, symbolism, symbolist, symbolize, symbolize, symbolise, symmetric, symmetrical, symmetrically, symmetry, sympathetic, sympathetically, sympathise, sympathize, sympathize with, sympathize, sympathise, sympathizer, sympathiser,