Unhealthy looking; SYN. sickly.

ETYM Old Eng. salwe, AS. sealh; akin to Old High Germ. salaha, German salweide, Icel. selja, Latin salix, Irish sail, saileach, Gael. seileach, W. helyg, Greek elike.
Any of several Old World shrubby broad-leaved willows having large catkins; some are important sources for tanbark and charcoal.

ETYM Poetic.
To cause to become sallow, as of complexion.