Exegesis:

palin ‘again’: the ordinary meaning ‘again’ seems out of place here since this is the first time, according to the narrative that the crowd shouted to Pilate. Black suggests ‘thereupon,’ while Lagrange refers to 2.13 as an example of palin used in a more general sense than ‘again’ with its implication of a repetition of an act done before. Arndt & Gingrich suggest that a previous outburst is implied in v. 11, or else (which seems more probable) that palin here carries the idea of ‘back’ – ‘they shouted back’ – as in 11.3 apostelein palin means ‘to send back’ (cf. Goodspeed).

ekraxan (cf. 3.11) ‘they shouted,’ ‘they cried out.’

staurōson (15.14, 15, 20, 24, 25, 27; 16.6) ‘you must crucify!’

Translation:

Cried out again may be translated as ‘yelled back at him’ or ‘shouted back.’

For a discussion of the form of the cross see 8.34. The verb crucify should in some way be related to execution by means of a cross. It is not enough merely to translate ‘kill him.’ However, the particular way in which Jesus was executed by being put on the cross is differently described in various languages, e.g. ‘fasten him to a spread-back-stick’ (Loma (Liberia)) and ‘nail him on a cross’ (Copainalá Zoque), and ‘nail on the cross wood’ (Mongolian). However, since Pilate would not himself nail Jesus to the cross, it is necessary in some languages to use a causative, e.g. ‘cause him to be nailed on a cross.’

Quoted with permission from Bratcher, Robert G. and Nida, Eugene A. A Handbook on the Gospel of Mark. (UBS Handbook Series). New York: UBS, 1961. For this and other handbooks for translators see here .