Lǽstan

According to the Old English Dictionary:

lǽstan

p. te. I. to follow, attend, accompany, do suit and service :-- Sóna ða beótunge dǽdum lǽstan neque segnius minas effectibus prosequuntur, Bd. 1, 15; S. 483, 39, MS. C. Allum ðám ðe him lǽstan woldon with all those who would follow him, Chr. 874; Erl. 76, 31. Gif hí leódfruman lǽstan dorsten, Bt. Met. Fox 1, 54; Met. 1, 27. Him se líchoma lǽstan nolde the body would not do him service [of Grendel powerless in the grasp of Beowulf], Beo. Th. 1629; B. 812. II. to do, perform, observe, carry out, execute, discharge [a debt or duty] :-- Ic lufan symle lǽste wið eówic I will ever love you, Exon. 14 b; Th. 30, 10; Cri. 471. Gif hé lǽst mína lára if he does my teachings, Cd. 29; Th. 39, 3; Gen. 619. Ðenden ðú míne láre lǽstest, 99; Th. 130, 32; Gen. 2169. Lǽstes, 27; Th. 36, 15; Gen. 572. Forðon hé ða godspellícan bebode heóld and lǽste quod evangelica præcepta servaret, Bd. 3, 22; S. 553, 23: 4, 25; S. 600, 20. Ðæt hí ða ungewerigadre geornfullnysse fylidon and lǽston ut instituta indefessa instantia sequerentur, 4, 3; S. 568, 15. Ðæt mid dǽdum lǽston ða ðe hí ongitan mih ton ut ea quæ intelligere poterant, operando sequerentur, 4, 27; S. 604, 18. Wé sóðfæstes swaðe folgodon, lǽston lárcwide, Andr. Kmbl. 1347; An. 674. Lǽstun, Exon. 25 b; Th. 75, 21; Cri. 1225. Bibeád ic eów ... earge gé ðæt lǽstun my command was ... ill have ye performed it, 30 a; Th. 92, 3; Cri. 1503. Leófa Beówulf lǽst eall tela, Beo. Th. 5320; B. 2662: Cd. 106; Th. 139, 4; Gen. 2304. Lǽste ðú georne his ambyhto do diligently his messages, 25; Th. 33, 9; Gen. 517. Ðú lǽstan scealt ðæt his bodan bringaþ, Th. 32, 26; Gen. 509. Geongordóm lǽstan, 30; Th. 41, 26; Gen. 663. Gif ðú wilt his wordum hýran and his bebodu lǽstan if thou wilt hear his words, and do his commands, Blickl. Homl. 185, 1: Exon. 45 a; Th. 152, 28; Gú. 815. [Ic an six marc silures and ðat schal Godríc míne bróðer lésten (pay), Chart. Th. 566, 23, 31.] III. to continue, last :-- Ðonne him dagas lǽstun in their life-time, Exon. 26 b; Th. 79, 12; Cri. 1289. [Ðæt fír læste swa lange ꝥ hit wæs liht ofer eall, Chr. 1122; Erl. 249, 25, ð lastede þa xix wintre wile Stephne was king, 1137; Erl. 262, 19.] [Gen. and Ex. lesten to perform: Orm. lasstenn to last: Laym. læsteþ lasts: O. E. Homl. lasteþ: A. R. lesteþ: Marh. leasteþ: Mand. laste to perform: Goth. laistjan to follow: O. Sax. léstian to do, perform: O. Frs. lásta, lésta, to do, perform, pay: O. H. Ger. leistan reddere: Ger. leisten.] læstan