type of tall, shrubby willow plant of the Old World, Middle English saloue, from Old English sealh (Anglian salh), from Proto-Germanic *salhjon (source also of Old Norse selja, Old High German salaha, and the first element in the German compound Salweide).
This is reconstructed to be from PIE *sal(i)k- "willow" (source also of Latin salix "willow" (taken in botany as the genus name), Middle Irish sail, Welsh helygen, Breton halegen "willow"). French saule "willow" is from Frankish salha, from the Germanic root. It was used in Palm Sunday processions and decorations in England before the importing of real palm leaves began.
"starchy foodstuff made of the piths of palms," 1570s, via Portuguese and Dutch from Malay (Austronesian) sagu, the name of the palm tree from which it is obtained (attested in English in this sense from 1550s). Also borrowed in French (sagou), Spanish (sagu), German (Sago).
"palm tree," 1550s, from Spanish and Portuguese coco "grinning or grimacing face," on resemblance of the three depressions at the base of the shell to a monkey or human face. The earlier word for it was the Latinized form cocus, which sometimes was Englished as cocos.
also ratan, type of climbing palm with tough, flexible stems that are economically valuable for making chair-bottoms, walking sticks, baskets, etc., 1650s, from Malay (Austronesian) rotan, rautan, according to OED from raut "to trim, strip, peel, pare."
"act of lying or state of being laid on the back," in anatomy, the movement of the forearm and hand which brings the palm of the hand uppermost (opposite of pronation); 1660s, from Late Latin supinationem (nominative supinatio), noun of action from past-participle stem of supinare "bend or lay backward or on the back" (see supinate).
one of an order of gymnospermous plants, 1845, from Cycadaceae, the family name, Modern Latin, from Greek kykas, a word found in Theophrastus but now thought to be a scribal error for koikas "palm trees," accusative plural of koix, which probably is from an unknown non-Greek language. Related: Cycadaceous.